Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwADR+/un1PzuFuI39EOChU1s0T9V7lAYx1kWS9d5QuyQ2vCK+4Yo8jTG5QZ… (844 chars)"
  }
}