Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC/Hrp4+xJowx/wkhDJ09mri5GnpS/Dieey/Wl2mk0G9A+PQSWaSiaaw3ZW… (1,748 chars)"
  }
}