Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGzSdx0JLCKO2MQZfp+UlxFbvhGyh76sB3NISaLBJKlYhkkCd4YVBEL0J/4… (844 chars)"
  }
}