Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFIZ4kcJqoHW+z+m5Jz2f9/bHIPMZMM9WsLu1/836SqiCmPIGUS/QRWTDbU… (844 chars)"
  }
}