Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQK4xx8BgDnCkEGlMZM+bAEC79HEY2qemRj5RV8U7Y5ObW+bSS6qSMFu+zT/… (1,748 chars)"
  }
}