I don’t see you responding to the challenge anywhere. When you subscribe to an EventSub over webhooks, Twitch will send you a challenge, as you can see in one of your summaries [challenge] => 7oju4NLCrEwRNYgHNVAzYXf_brHJR4J5iNDaiHZI2Qs
When Twitch sends that to you, you need to respond with a 200 status AND that challenge, which in that case would be 7oju4NLCrEwRNYgHNVAzYXf_brHJR4J5iNDaiHZI2Qs. If your server doesn’t send that challenge back, it fails the verification process.