diff --git a/contract_manager/scripts/common.ts b/contract_manager/scripts/common.ts
index 9b6f099251..73c1cb7a07 100644
--- a/contract_manager/scripts/common.ts
+++ b/contract_manager/scripts/common.ts
@@ -78,6 +78,7 @@ export const COMMON_DEPLOY_OPTIONS = {
   },
   chain: {
     type: "array",
+    string: true,
     demandOption: true,
     desc: "Chains to upload the contract on. Must be one of the chains available in the store",
   },
@@ -207,22 +208,6 @@ export function findEntropyContract(chain: EvmChain): EvmEntropyContract {
   throw new Error(`Entropy contract not found for chain ${chain.getId()}`);
 }
 
-/**
- * Finds an EVM chain by its name.
- * @param {string} chainName The name of the chain to find.
- * @returns The EVM chain instance.
- * @throws {Error} an error if the chain is not found or is not an EVM chain.
- */
-export function findEvmChain(chainName: string): EvmChain {
-  const chain = DefaultStore.chains[chainName];
-  if (!chain) {
-    throw new Error(`Chain ${chainName} not found`);
-  } else if (!(chain instanceof EvmChain)) {
-    throw new Error(`Chain ${chainName} is not an EVM chain`);
-  }
-  return chain;
-}
-
 /**
  * Finds the wormhole contract for a given EVM chain.
  * @param {EvmChain} chain The EVM chain to find the wormhole contract for.
diff --git a/contract_manager/scripts/deploy_evm_contract.ts b/contract_manager/scripts/deploy_evm_contract.ts
index af598a04e5..5757f95fb3 100644
--- a/contract_manager/scripts/deploy_evm_contract.ts
+++ b/contract_manager/scripts/deploy_evm_contract.ts
@@ -33,25 +33,16 @@ const parser = yargs(hideBin(process.argv))
 async function main() {
   const argv = await parser.argv;
 
-  const chain = DefaultStore.chains[argv.chain];
-
-  if (!chain) {
-    throw new Error(`Chain ${argv.contract} not found`);
-  }
-
-  if (chain instanceof EvmChain) {
-    const artifact = JSON.parse(readFileSync(argv["std-output"], "utf8"));
-    const address = await chain.deploy(
-      toPrivateKey(argv["private-key"]),
-      artifact["abi"],
-      artifact["bytecode"],
-      argv["deploy-args"] || []
-    );
-
-    console.log(`Deployed contract at ${address}`);
-  } else {
-    throw new Error("Chain is not an EVM chain");
-  }
+  const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
+  const artifact = JSON.parse(readFileSync(argv["std-output"], "utf8"));
+  const address = await chain.deploy(
+    toPrivateKey(argv["private-key"]),
+    artifact["abi"],
+    artifact["bytecode"],
+    argv["deploy-args"] || []
+  );
+
+  console.log(`Deployed contract at ${address}`);
 }
 
 main();
diff --git a/contract_manager/scripts/deploy_evm_entropy_contracts.ts b/contract_manager/scripts/deploy_evm_entropy_contracts.ts
index c77f26a9f1..7b658eaa97 100644
--- a/contract_manager/scripts/deploy_evm_entropy_contracts.ts
+++ b/contract_manager/scripts/deploy_evm_entropy_contracts.ts
@@ -172,13 +172,7 @@ async function topupAccountsIfNecessary(
 async function main() {
   const argv = await parser.argv;
 
-  const chainName = argv.chain;
-  const chain = DefaultStore.chains[chainName];
-  if (!chain) {
-    throw new Error(`Chain ${chainName} not found`);
-  } else if (!(chain instanceof EvmChain)) {
-    throw new Error(`Chain ${chainName} is not an EVM chain`);
-  }
+  const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
 
   const deploymentConfig: DeploymentConfig = {
     type: toDeploymentType(argv.deploymentType),
diff --git a/contract_manager/scripts/deploy_evm_pricefeed_contracts.ts b/contract_manager/scripts/deploy_evm_pricefeed_contracts.ts
index 6f48074a70..265d10a2f0 100644
--- a/contract_manager/scripts/deploy_evm_pricefeed_contracts.ts
+++ b/contract_manager/scripts/deploy_evm_pricefeed_contracts.ts
@@ -111,12 +111,7 @@ async function main() {
   const chainNames = argv.chain;
 
   for (const chainName of chainNames) {
-    const chain = DefaultStore.chains[chainName];
-    if (!chain) {
-      throw new Error(`Chain ${chainName} not found`);
-    } else if (!(chain instanceof EvmChain)) {
-      throw new Error(`Chain ${chainName} is not an EVM chain`);
-    }
+    const chain = DefaultStore.getChainOrThrow(chainName, EvmChain);
 
     console.log(`Deploying price feed contracts on ${chain.getId()}...`);
 
diff --git a/contract_manager/scripts/entropy_debug_reveal.ts b/contract_manager/scripts/entropy_debug_reveal.ts
index 5102741465..36ebc38ae2 100644
--- a/contract_manager/scripts/entropy_debug_reveal.ts
+++ b/contract_manager/scripts/entropy_debug_reveal.ts
@@ -1,11 +1,7 @@
 import yargs from "yargs";
 import { hideBin } from "yargs/helpers";
-import { toPrivateKey } from "../src";
-import {
-  COMMON_DEPLOY_OPTIONS,
-  findEntropyContract,
-  findEvmChain,
-} from "./common";
+import { DefaultStore, EvmChain, toPrivateKey } from "../src";
+import { COMMON_DEPLOY_OPTIONS, findEntropyContract } from "./common";
 
 const parser = yargs(hideBin(process.argv))
   .usage(
@@ -29,7 +25,7 @@ const parser = yargs(hideBin(process.argv))
 
 async function main() {
   const argv = await parser.argv;
-  const chain = findEvmChain(argv.chain);
+  const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
   const contract = findEntropyContract(chain);
   const sequenceNumber = argv.sequenceNumber;
 
diff --git a/contract_manager/scripts/generate_governance_set_fee_config.sample.yaml b/contract_manager/scripts/generate_governance_set_fee_config.sample.yaml
new file mode 100644
index 0000000000..848e701309
--- /dev/null
+++ b/contract_manager/scripts/generate_governance_set_fee_config.sample.yaml
@@ -0,0 +1,24 @@
+- chainName: aurora
+  fee: 3
+  exponent: 12
+- chainName: avalanche
+  fee: 25
+  exponent: 13
+- chainName: conflux_espace
+  fee: 1
+  exponent: 17
+- chainName: cronos
+  fee: 6
+  exponent: 16
+- chainName: meter
+  fee: 2
+  exponent: 16
+- chainName: ronin
+  fee: 1
+  exponent: 15
+- chainName: sei_evm_mainnet
+  fee: 1
+  exponent: 16
+- chainName: shimmer
+  fee: 1
+  exponent: 18
diff --git a/contract_manager/scripts/generate_governance_set_fee_payload.ts b/contract_manager/scripts/generate_governance_set_fee_payload.ts
index d62000f906..b5ce99f62e 100644
--- a/contract_manager/scripts/generate_governance_set_fee_payload.ts
+++ b/contract_manager/scripts/generate_governance_set_fee_payload.ts
@@ -1,41 +1,62 @@
 import yargs from "yargs";
 import { hideBin } from "yargs/helpers";
-import { DefaultStore } from "../src";
-import { Chain } from "../src/chains";
+import { DefaultStore, loadHotWallet } from "../src";
+import { readFileSync } from "fs";
+import { parse } from "yaml";
 
 const parser = yargs(hideBin(process.argv))
-  .usage("Usage: $0 --chain <chain_id> --fee <fee> --exponent <exponent>")
+  .usage("Usage: $0 --config <path/to/config.yaml>")
   .options({
-    chain: {
+    "config-path": {
       type: "string",
       demandOption: true,
-      desc: "Chain for which to generate the Set Fee payload",
+      desc: "Path to the config file",
     },
-    fee: {
-      type: "number",
+    "ops-key-path": {
+      type: "string",
       demandOption: true,
-      desc: "The new fee to set",
+      desc: "Path to the ops key file",
     },
-    exponent: {
-      type: "number",
-      demandOption: true,
-      desc: "The new fee exponent to set",
+    vault: {
+      type: "string",
+      default: "mainnet-beta_FVQyHcooAtThJ83XFrNnv74BcinbRH3bRmfFamAHBfuj",
+      desc: "Vault ID",
     },
   });
 
 async function main() {
-  const { chain, fee, exponent } = await parser.argv;
+  const {
+    "config-path": configPath,
+    "ops-key-path": opsKeyPath,
+    vault: vaultId,
+  } = await parser.argv;
+
+  const config = parse(readFileSync(configPath, "utf8"));
+
+  const updatePayloads: Buffer[] = [];
+  for (const setFeeEntry of config) {
+    const chain = DefaultStore.getChainOrThrow(setFeeEntry.chainName);
+    const payload = chain.generateGovernanceSetFeePayload(
+      setFeeEntry.fee,
+      setFeeEntry.exponent
+    );
+    updatePayloads.push(payload);
+    console.log(
+      `Generated payload for chain ${setFeeEntry.chainName}:`,
+      payload.toString("hex")
+    );
+  }
+
+  const vault = DefaultStore.vaults[vaultId];
 
-  const chain_obj = DefaultStore.chains[chain];
-  if (!chain_obj) {
-    throw new Error(`Chain with ID '${chain}' does not exist.`);
+  if (!vault) {
+    throw new Error(`Vault with ID '${vaultId}' does not exist.`);
   }
 
-  const payload = chain_obj.generateGovernanceSetFeePayload(fee, exponent);
-  console.log(
-    `Generated payload for chain ${chain_obj}:`,
-    payload.toString("hex")
-  );
+  const keypair = await loadHotWallet(opsKeyPath);
+  vault.connect(keypair);
+  const proposal = await vault.proposeWormholeMessage(updatePayloads);
+  console.log("Proposal address:", proposal.address.toBase58());
 }
 
 main();
diff --git a/contract_manager/scripts/generate_upgrade_near_contract_proposal.ts b/contract_manager/scripts/generate_upgrade_near_contract_proposal.ts
index d4241b7323..5b15834edc 100644
--- a/contract_manager/scripts/generate_upgrade_near_contract_proposal.ts
+++ b/contract_manager/scripts/generate_upgrade_near_contract_proposal.ts
@@ -31,10 +31,7 @@ async function main() {
   const argv = await parser.argv;
 
   // Near wormhole contracts have the same id on testnet and mainnet.
-  const chain = DefaultStore.chains.near;
-  if (!(chain instanceof NearChain)) {
-    throw new Error("Near chain is missing");
-  }
+  const chain = DefaultStore.getChainOrThrow("near", NearChain);
 
   const vault =
     DefaultStore.vaults[
diff --git a/contract_manager/scripts/generate_upgrade_ton_contract_proposal.ts b/contract_manager/scripts/generate_upgrade_ton_contract_proposal.ts
index 277ad611df..b5aa06e4c0 100644
--- a/contract_manager/scripts/generate_upgrade_ton_contract_proposal.ts
+++ b/contract_manager/scripts/generate_upgrade_ton_contract_proposal.ts
@@ -42,10 +42,10 @@ async function main() {
   const wormholeChainName = toChainName(chainId);
 
   // Get the TON chain instance from DefaultStore based on network
-  const chain = DefaultStore.chains[isMainnet ? "ton_mainnet" : "ton_testnet"];
-  if (!chain || !(chain instanceof TonChain)) {
-    throw new Error(`Chain configuration not found for TON ${argv.network}`);
-  }
+  const chain = DefaultStore.getChainOrThrow(
+    isMainnet ? "ton_mainnet" : "ton_testnet",
+    TonChain
+  );
 
   const vault =
     DefaultStore.vaults[
diff --git a/contract_manager/scripts/latency_entropy.ts b/contract_manager/scripts/latency_entropy.ts
index 4c5d57220a..0f0e9266b0 100644
--- a/contract_manager/scripts/latency_entropy.ts
+++ b/contract_manager/scripts/latency_entropy.ts
@@ -1,11 +1,7 @@
 import yargs from "yargs";
 import { hideBin } from "yargs/helpers";
-import { toPrivateKey } from "../src";
-import {
-  COMMON_DEPLOY_OPTIONS,
-  findEntropyContract,
-  findEvmChain,
-} from "./common";
+import { DefaultStore, EvmChain, toPrivateKey } from "../src";
+import { COMMON_DEPLOY_OPTIONS, findEntropyContract } from "./common";
 
 const parser = yargs(hideBin(process.argv))
   .usage(
@@ -24,7 +20,7 @@ const parser = yargs(hideBin(process.argv))
 
 async function main() {
   const argv = await parser.argv;
-  const chain = findEvmChain(argv.chain);
+  const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
   const contract = findEntropyContract(chain);
 
   const provider = await contract.getDefaultProvider();
diff --git a/contract_manager/scripts/latency_entropy_with_callback.ts b/contract_manager/scripts/latency_entropy_with_callback.ts
index 97d75cad9f..33480efa5b 100644
--- a/contract_manager/scripts/latency_entropy_with_callback.ts
+++ b/contract_manager/scripts/latency_entropy_with_callback.ts
@@ -2,16 +2,12 @@ import yargs from "yargs";
 import { hideBin } from "yargs/helpers";
 import {
   DefaultStore,
+  EvmChain,
   EvmEntropyContract,
   PrivateKey,
   toPrivateKey,
 } from "../src";
-import {
-  COMMON_DEPLOY_OPTIONS,
-  findEntropyContract,
-  findEvmChain,
-} from "./common";
-import Web3 from "web3";
+import { COMMON_DEPLOY_OPTIONS, findEntropyContract } from "./common";
 
 const parser = yargs(hideBin(process.argv))
   .usage(
@@ -111,7 +107,7 @@ async function main() {
       }
     }
   } else if (argv.chain) {
-    const chain = findEvmChain(argv.chain);
+    const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
     const contract = findEntropyContract(chain);
     await testLatency(contract, privateKey);
   }
diff --git a/contract_manager/scripts/list_entropy_contracts.ts b/contract_manager/scripts/list_entropy_contracts.ts
index bbe1bebac5..1b03b2e844 100644
--- a/contract_manager/scripts/list_entropy_contracts.ts
+++ b/contract_manager/scripts/list_entropy_contracts.ts
@@ -15,7 +15,17 @@ const parser = yargs(hideBin(process.argv))
 
 async function main() {
   const argv = await parser.argv;
-  const entries = [];
+  const entries: {
+    chain: string;
+    contract: string;
+    provider: string;
+    feeManager: string;
+    balance: string;
+    keeperBalance: string;
+    seq: string;
+    version: string;
+  }[] = [];
+
   const keeperAddress =
     ENTROPY_DEFAULT_KEEPER[argv.testnet ? "testnet" : "mainnet"];
   for (const contract of Object.values(DefaultStore.entropy_contracts)) {
diff --git a/contract_manager/scripts/list_evm_contracts.ts b/contract_manager/scripts/list_evm_contracts.ts
index 2c154dfd41..f0fa89c04d 100644
--- a/contract_manager/scripts/list_evm_contracts.ts
+++ b/contract_manager/scripts/list_evm_contracts.ts
@@ -14,7 +14,11 @@ const parser = yargs(hideBin(process.argv))
 
 async function main() {
   const argv = await parser.argv;
-  const entries = [];
+  const entries: {
+    chain: string;
+    contract: string;
+    version: string;
+  }[] = [];
   for (const contract of Object.values(DefaultStore.contracts)) {
     if (contract.getChain().isMainnet() === argv.testnet) continue;
     if (contract instanceof EvmPriceFeedContract) {
diff --git a/contract_manager/scripts/list_wormhole_contracts.ts b/contract_manager/scripts/list_wormhole_contracts.ts
index 4ff064c1e5..c24647862f 100644
--- a/contract_manager/scripts/list_wormhole_contracts.ts
+++ b/contract_manager/scripts/list_wormhole_contracts.ts
@@ -14,7 +14,12 @@ const parser = yargs(hideBin(process.argv))
 
 async function main() {
   const argv = await parser.argv;
-  const entries = [];
+  const entries: {
+    chain: string;
+    contract: string;
+    guardianSetIndex: number;
+    chainId: number;
+  }[] = [];
   for (const contract of Object.values(DefaultStore.wormhole_contracts)) {
     if (
       contract instanceof EvmWormholeContract &&
diff --git a/contract_manager/scripts/load_test_entropy.ts b/contract_manager/scripts/load_test_entropy.ts
index 83411b12b3..0ffab3bda5 100644
--- a/contract_manager/scripts/load_test_entropy.ts
+++ b/contract_manager/scripts/load_test_entropy.ts
@@ -1,16 +1,7 @@
 import yargs from "yargs";
 import { hideBin } from "yargs/helpers";
-import {
-  DefaultStore,
-  EvmEntropyContract,
-  PrivateKey,
-  toPrivateKey,
-} from "../src";
-import {
-  COMMON_DEPLOY_OPTIONS,
-  findEntropyContract,
-  findEvmChain,
-} from "./common";
+import { DefaultStore, EvmChain, toPrivateKey } from "../src";
+import { COMMON_DEPLOY_OPTIONS, findEntropyContract } from "./common";
 import Web3 from "web3";
 
 const parser = yargs(hideBin(process.argv))
@@ -23,12 +14,12 @@ const parser = yargs(hideBin(process.argv))
     chain: {
       type: "string",
       demandOption: true,
-      desc: "test latency for the contract on this chain",
+      desc: "Chain to load test the entropy contract on",
     },
     "tester-address": {
       type: "string",
       demandOption: true,
-      desc: "Tester contract address",
+      desc: "Address of the EntropyTester contract",
     },
     "success-count": {
       type: "number",
@@ -72,7 +63,7 @@ const ABI = [
 async function main() {
   const argv = await parser.argv;
   const privateKey = toPrivateKey(argv.privateKey);
-  const chain = findEvmChain(argv.chain);
+  const chain = DefaultStore.getChainOrThrow(argv.chain, EvmChain);
   const contract = findEntropyContract(chain);
   const provider = await contract.getDefaultProvider();
   const fee = await contract.getFee(provider);
diff --git a/contract_manager/src/chains.ts b/contract_manager/src/chains.ts
index 7dcef89d70..2f49c4543b 100644
--- a/contract_manager/src/chains.ts
+++ b/contract_manager/src/chains.ts
@@ -66,6 +66,7 @@ export type ChainConfig = Record<string, string> & {
 };
 export abstract class Chain extends Storable {
   public wormholeChainName: ChainName;
+  static type: string;
 
   /**
    * Creates a new Chain object
diff --git a/contract_manager/src/store.ts b/contract_manager/src/store.ts
index 1c787e3a24..8eb82bb7e0 100644
--- a/contract_manager/src/store.ts
+++ b/contract_manager/src/store.ts
@@ -221,6 +221,30 @@ export class Store {
       }
     });
   }
+
+  /**
+   * Returns the chain with the given ID, or throws an error if it doesn't exist or is not of the specified type.
+   * @param chainId The unique identifier of the chain to retrieve
+   * @param ChainClass Optional class to validate the chain type.
+   * @returns The chain instance of type T
+   * @throws Error if chain doesn't exist or is not of the specified type
+   * @template T Type of chain to return, extends base Chain class
+   */
+  getChainOrThrow<T extends Chain>(
+    chainId: string,
+    ChainClass?: { new (...args: any[]): T; type: string }
+  ): T {
+    const chain = this.chains[chainId];
+    if (!chain) {
+      throw new Error(`Chain with ID '${chainId}' does not exist.`);
+    }
+    if (ChainClass && !(chain instanceof ChainClass)) {
+      throw new Error(
+        `Chain with ID '${chainId}' is not of type ${ChainClass.type}.`
+      );
+    }
+    return chain as T;
+  }
 }
 
 /**