Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHq6P3wQk8gE8YrGCkGzC24y4cRFIbRPwiyRw/rUJXo2WBfdkkJ+ucMvAG/… (844 chars)"
  }
}