Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDe34tPTKDYjCkoQOQ6hWlnsOgF0RcY4E0WjHM5WzBadF5jvpYEOKj7xcfJ… (1,748 chars)"
  }
}