[Store] Add Index to metadata_id (#190)

Author: bh2smith

data-store/migrations/2024-03-14-140922_index_metadata_id/down.sql

@@ -0,0 +1,2 @@
+DROP INDEX erc721_metadata_ind;
+DROP INDEX erc1155_metadata_ind;

data-store/migrations/2024-03-14-140922_index_metadata_id/up.sql

@@ -0,0 +1,2 @@
+CREATE INDEX erc721_metadata_ind ON nfts (metadata_id);
+CREATE INDEX erc1155_metadata_ind ON erc1155s (metadata_id);