You can likely take the keys off of that keyboard. Also, you can soak it in warm water (not sure if you should add soap... you probably don't have to) and wipe it off. Just make sure it's really dry before you plug it back in. Keyboards are quite resilient.

Sometimes you can put a keyboard in the dishwasher, but I'm a little hesitant about that.... I know about a lady who tried that and then complained to tech support that her computer wasn't working. It turned out that she had put her whole laptop into the dishwasher. Smart people!