Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA3Ppa/2ZHEZFAfcID4chkTnty/uWLhQtIi8tOlMTviVCPtFd1SjgC5Z9b+… (844 chars)"
  }
}