Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBjMx5ETaK52l5vlCjl4CNlaRvPy5CrhfUZlIb5wpNrPRcDzOr+NAyKYUaJ… (1,748 chars)"
  }
}