I have been setting up a webhook that sends a POST request to a server, and I have been strictly following this tutorial. However, I cannot get the signature header to match the one that I generate.
I have also referred to this post in which the user encountered what seems to be the same exact issue, but I couldn't find a solution in the responses. I have tried utf8 decoding various headers, similar to what a user did in a python example (my verification is in php), but that hasn't worked either.
The signature that I create ends up consistently being double the length of the signature header. Any thoughts?
This is what I am using to verify the webhook.