I have not made that request so probably someone is trying to log into my nicehash account right now.
I got my liqui account hacked few weeks back and now getting password reset email from multiple sites, I don't have anything on that nicehash account but posting this to make other aware about what can happen if you don't use strong/unique password and don't activate 2FA. Make sure to not use same email address to register in some random sites that doesn't have SSL certificate.
If thats the case then someones trying to access your account but as you said you do make strong password which the attacker doesnt succeed on his hacking and its always been good to have unique and setting up 2fa on any account. Using the same email address among sites increase the chance of getting hacked but i do that habit as long i do know how to set proper security on my account then it doesnt matter at all.