Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHRNsNbjVLyYdmM1/DALH4gZpD4fataP5N3uC67OJCdxCu1uB+Kkx6c5mdI… (844 chars)"
  }
}