Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBJzp+yD8JzTuG89P+LMqPewiHZNTJQMDPSpu81+N7JdiLM/3gRTmCtU4Cp… (1,748 chars)"
  }
}