Cloudflare > Security > Event > I set the firewalls to 30 min and scrolled to the bottom where the logs are
Then I open another window and open my forum where I tried to attach an image. I knew it would trigger a log result.
Then back at cloudflare I renew the page and noticed a log with my IP address and also it read Sweden as country where I live.
I then could see info and also could click to open more logs it was total 11 OWASP logs regarding a "managed challenge" not a block.
Hope this helps
