This isn’t your problem.
The best thing you can do in this situation is just to keep your server reasonably updated and secured.
At best for you, the client side of a request was running seriously outdated software, and at worst your server is simply being scanned for vulnerabilities by compromised devices connected to the internet.
Personally I lean in the direction of this being scanning, as I myself see these errors on a private development server, to which only I should ever have a legitimate reason to connect to, yet I see a ton of IP addresses mentioned by the error from around the world.
Similar question and answer has already been provided here:
https://serverfault.com/questions/905011/nginx-ssl-do-handshake-failed-ssl-error1417d18cssl/905019
Stay safe.