You'll be fine.
Just don't pretend to be German, and don't shuffle along avoiding eye contact with the bouncers.
Get "Sprechen sie Englisch, meine Deutsch is nacht zehr gut" at the ready, with an honest sense of accepting that you are an out of towner, though you want to engender upon them that you have the attitude that you're entirely there for the music and have travelled from afar to see these DJ's and this club, and not as if it's the latest leg of your 19 club marathon tour because you read it on the Easyjet mag on the way over*, (along with the 8 pairs of people immediately behind whispering in the same foreign tongue to each other, overly pretending not to know the other group directly around them
).
*Though the book Somethign soemthing something Berlin and the Easyjet set is an awesome read