Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFLSX6rAp2t/7Qc6WqtO+5bayw+eWgnhGeyslU+643K+T7y6dGLw+RMQ8Wn… (844 chars)"
  }
}