Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHCNjq+LjkVep5SuL9V5vy+J6Qy1RiJQ57VnkIHosSzoGuYb1YoXWOo9dKI… (844 chars)"
  }
}