'Apple storekit v2 real signed transaction info and real signed notification

Is there any real example of app store signed transaction or signed notification? I can find decoded form for transaction info or notification payload but not real signed example. There are some decoded examples but I want some real token with header alg and x5c. I would like test my backend implementation during development. My goal is receive App Store Server Notifications v2 and update my data.



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source