Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDzC/SBr0MCvTDDuM5PqwIaWv7PF2PEA6KJn7PQUMsVwCvBwupkEKqXeLYp… (844 chars)"
  }
}