One option is to use a platform like we created at https://hookdeck.com/ https://hookdeck.com/ where we handle verification with multiple providers and then off

One option is to use a platform like we created at https://hookdeck.com/ https://hookdeck.com/ where we handle verification with multiple providers and then offer downstream destinations a verifiable request (the Hookdeck signature is a SHA-256 based HMAC digest). Drop Hookdeck in as a proxy between the origin service and your destination and you get seamless integrations that help with reliability, observability, and recovery (request replays).