Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwJOEuEe7OOj0VXHPAZtNIwMC9qiTZNqJ1TW/TwHVznvqXKcNXH+0LgJ4G0G… (844 chars)"
  }
}