This code will check user notification subscription status on PushBots and toggle Push Notifications:

    [Pushbots getDevice:^(NSDictionary *device, NSError *error) {

        if(device != nil){

            NSLog(@"Current Subscription status: %d", [[device valueForKey:@"sub"] boolValue]);

            [Pushbots toggleNotifications:![[device valueForKey:@"sub"] boolValue]];

            NSLog(@"Updated Subscription status: %d", ![[device valueForKey:@"sub"] boolValue]);

        }

    }];
Did this answer your question?