Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDnc6gAlI5NNu1ss+Znu2bzUrNeSBiIUFrxVePwrbu0pgNb7G1LHo7EBbB+… (1,748 chars)"
  }
}