fix: nft_json may be null in nftscan response (#5758)

Author: Lanttcat

packages/web3-providers/src/NFTScan/index.ts

@@ -52,7 +52,7 @@ function createERC721TokenAsset(asset: NFTScanAsset) {
         name?: string
         description?: string
         image?: string
-    } = JSON.parse(asset.nft_json)
+    } = JSON.parse(asset.nft_json ?? '{}')
     const detailed = createERC721ContractDetailedFromAssetContract(asset)
     return createERC721Token(
         detailed,

packages/web3-providers/src/NFTScan/types.ts

@@ -8,7 +8,7 @@ export interface NFTScanAsset {
     nft_creator: string
     nft_detail: string
     nft_holder: string
-    nft_json: string
+    nft_json?: string
     nft_value: string
     nft_name: string
     nft_platform_name: string