Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHhWJ+8rV6ej1JCh4WeOkCIZnZV6EDp7qg3Pv7Rw0XS5AhSo/48MQgeQxNb… (844 chars)"
  }
}