curl --request POST \
  --url https://metadata.sequence.app/rpc/Collections/CreateContractCollection \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "projectId": 30957,
  "contractCollection": {
    "chainId": 80002,
    "contractAddress": "0x477566e9ade2dfa69f066f909e36ad617a2adef7",
    "collectionId": 819
  }
}
'

{
  "contractCollection": {
    "id": 460,
    "chainId": 80002,
    "contractAddress": "0x477566e9ade2dfa69f066f909e36ad617a2adef7",
    "collectionId": 819
  }
}