Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH3o8Xv4zqi3KCWmwhjcPbYyG/Z+WZpQvntKmG61m7lUE7bHp9tU8C3MzFw… (844 chars)"
  }
}