Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDaTrVIrMG5Ey7cZWe6TPkexMS53qs6gFcqfAAGuJrPdC4bIC9SzZIZXGhx… (1,748 chars)"
  }
}