Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHzaFqzjc3S920d6BBIo+2WPaiJJ/gIgMzHSXMQ4A5+c0Pm6OymnKs9GGK4… (844 chars)"
  }
}