Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHfXRIRVQiFOHqf+BLp6xDkUqBc0DeNO4/BPz8RJ2IPhz40Hw7aBe2XW1vz… (844 chars)"
  }
}