Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDhLXCYD7J1wuc2Kvqv8rXIGsDTz0CU4CWYmNDSKFXK8G6hq7SfFnbH037/… (844 chars)"
  }
}