Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGM3N6GXe1WNYX47fQw8S5hf8bTjwW/jn0c0XvfsHKph2mmJM9DcG3fK5eo… (844 chars)"
  }
}