Cause I'm bored.
w6vCrjrDrjvCuMKuAsOuw6LCuMKow6AuwqPCu8KKwo4DworCogPCui47wojCusOrwo7CusOg
Assuming I didn't mess up, the first one to find out what this means wins forever. Bonus: write an encoder and/or a decoder and golf the source code.
In case you're stumped, I have some clues, but otherwise, have fun ^_^