Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEZ2Tvd/p0TSAdyX6PqgdPxFnXELwwYhPEkJH44f7cUXXKcfoO+JNh01cV7… (844 chars)"
  }
}