Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDBVa13lHfK2UhUTbBHGBRcldWmb/bmTMKEkyNJ+OsoUCM6Xv9tq8t8ceF/… (1,748 chars)"
  }
}