Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDlSZYUuFxP+88R0AF1L7DVfmqGmlA24eVp+le/2JjVaWOEU76V7j0lA5eJ… (1,748 chars)"
  }
}