Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHBrUy5/jM89iEjZAXJGznULPSfDz7BkNVPELlcTb6dSzE903gJpb6O0e22… (844 chars)"
  }
}