Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDH1rLh+jzw2zAqa2+MNu0CiO05c6Q5GE3ylm9ahXt4SjMUScS+vZUm9wAI… (844 chars)"
  }
}