Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFUzBmX2zC7zRNJ18Md5jcixKLJc6/T1YBI+zGPYJYnK2yXj5HanHfVQhw/… (844 chars)"
  }
}