GDPR shop/redact - is my endpoint working properly?

[SteveTT]

I've implemented what I believe works for the shop/redact. Because, when I uninstall my app, my shop/redact gets triggered, as per docs, 48 hours later. My app's webhook metrics also show 0% failed delivery rate.

However, when I submitted my app for review. I saw a call to what seems to be shop/redact judging from it's payload, where hmac failed to verify. The shop is from a Shopify app reviewer, so I think the call is legit.

So, is my shop/redact endpoint working properly? 

[axis80]

I've seen a lot of similar entries in my logs - like, a whole spate of malformed requests in a row.  I think they're automated tests that check things like whether the app correctly validates HMAC signatures.