Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFc8CiCsiVyvzVDY8cD/9EuO4e0QRTzgZp7hfaYgYRS3w8gvp4L41gP0jiZ… (844 chars)"
  }
}