Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwC+YM3Y8yjA9bxbSQRVveZSl3/wT6GtqiXWqqcRK/JW32Wjm7pty82zNJjL… (844 chars)"
  }
}