download it normallly then rename the obb delete apk and put the mod apk then rename obb back to normal and it will play on obb just put the '1' in the end enjoy :)
DOWNLOAD THE GAME NORMALLY THEN RENAME THE OBB FOLDER >DELETE APK> INSTALL MOD APK> RENAME OBB FOLDER BACK TO NORMAL> AND IT WILL WORK :P ENJOY AND HAVE FUN :)