Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHffN6LoHjhQcWCZHp1t9TdsBvUNHoK6Kv8Wl+asmTcllJgVU7CUu0JCAWx… (844 chars)"
  }
}