Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCDEJ4QGgV1Uqe8j9kk8tczv+Lg0RaAmcxGMWTYlBJqrX/DXRfyExS7b8YF… (844 chars)"
  }
}