Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHDjuOMPPd0afxZKvb69XiYLd+w+Fh2M8qOYMjbl3bYi0irDkKDF1B+wYOJ… (844 chars)"
  }
}