Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBzPwQcNXgd2Eb7jMz/Bon5uR9z1l4eA/ku0Qf2OJE8enJ1gePOw8FnsHs7… (844 chars)"
  }
}