Performing moments.insert when using GTMOAuth2ViewControllerTouch for authentication

I'm trying to insert a "Moment" into a user's Google+ account, using the google-api-objectivec-client library. I think have the authentication process working properly. It's primarily the same way I have YouTube authentication set up, but with the correct scope and keychain name. However, when I try to run the query to insert the moment I get the following error:

Error Domain=com.google.GTLJSONRPCErrorDomain Code=401 "The operation couldn’t be completed. (Unauthorized)"

After looking at Google's documentation more carefully (here) I found the following comment:

When authenticating for moments.insert, you must include the data-requestvisibleactions parameter to specify which types of App Activities your application will write.

Google has several examples of how to do this with other programming languages, but they don't have any examples for the objective-c library, and the objective-c project doesn't contain any examples of how to do this either.

I know that there's another authentication method, using the GPPSignIn button, which has a way to set the actions. However, my application is using multiple other Google API clients (YouTube, YouTube Analytics, and URL Shortener). Mixing the GoogleOpenSource.framework with the other Objective-C libraries causes a conflict. So, I need to use the GTMOAuth2ViewControllerTouch class.

My Authentication Code

    GTMOAuth2ViewControllerTouch *viewController =
    [GTMOAuth2ViewControllerTouch controllerWithScope:kGTLAuthScopePlusLogin
                                             clientID:kGoogleApiClientId
                                         clientSecret:kGoogleApiClientSecret
                                     keychainItemName:kGooglePlusKeychainName
                                    completionHandler:^(GTMOAuth2ViewControllerTouch *viewController, GTMOAuth2Authentication *auth, NSError *error) {

              if (error)
                  NSLog(@"Error: %@", error.description);
              else
                  app.googlePlusService.authorizer = auth; //this sets a property of my app delegate, to be used elsewhere in the application


    }];

    [self.navigationController pushViewController:viewController animated:YES];

The code I'm using to insert the "Moment"

NSString *shareUrl = "http://www.google.com"; //just for this example

GTLPlusMoment *moment = [[GTLPlusMoment alloc] init];
moment.type = @"http://schemas.google.com/AddActivity";

GTLPlusItemScope *target = [[GTLPlusItemScope alloc] init];
target.url = shareUrl;
moment.target = target;

GTLQueryPlus *query =
[GTLQueryPlus queryForMomentsInsertWithObject:moment
                                       userId:@"me"
                                   collection:kGTLPlusCollectionVault];

[app.googlePlusService executeQuery:query
                  completionHandler:^(GTLServiceTicket *ticket,
                                      id object,
                                      NSError *error) {
     if (error) {
         NSLog(@"Got bad response from plus.moments.insert: %@", error);                     
     } else {
         NSLog(@"Moment inserted: %@",moment.identifier);
     }
 }];

Has anyone out there successfully found the place to add the data-requestvisibleactions parameter to either the authentication call or queryForMomentsInsertWithObject method to allow them to execute the moments.insert action without receiving an error?

Thanks!