Unzip the OBB file, but not into the same folder as the original name. Or - if you do, just open the first folder and you will find the second one inside with the same name that's the one you want. skip the MacOSX folder. In other words the data file itself should be inside the folder you put...
Game won't work, installed apk, and put the data folder in the Android OBB folder and when trying to play it won't load, saying The authentication process has failed. Please check your internet connection. My internet connection checks out fine.
UPDATE:
I messed up, I unzipped the OBB folder...