Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDp8RrItN+JmVrHx+1B+dHTbQ3fnSR/nXU0Q0PFxlkY0SnlUhOCq+JsO1Vx… (844 chars)"
  }
}