Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEKzAzUCpXjxjpOAHOaJtLXdZHKXBMhTyC/RCzkYbNrjD9Ni/4rDd2+oFNF… (844 chars)"
  }
}