Is there a way to clear a message from the notifications list? I've had my PS4 for a day and would love to not be greeted by a message from some random kid saying "fuck u" everytime I open the list.

Seriously, I don't even have PSN+ so I wasn't even playing online. I got a random message saying "fuck u" and it won't delete. Is there a way to clear that stuff? I've looked everywhere and can't find one.