Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBKjfQ74MsphwNp4uZpH0hMSl/+jfkI8ZzLY4xxzj3QxABB1WHq2qmCH1t/… (1,748 chars)"
  }
}