title: Parse JSON response with AFNetworking
body: <p>I've setup a JSON post with <code>AFNetworking</code> in Objective-C and am sending data to a server with the following code:</p>
  
  <pre><code>AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
  NSDictionary *parameters = @{@"name": deviceName, @"model": modelName, @"pin": pin};
  manager.requestSerializer = [AFJSONRequestSerializer serializer];
  [manager.requestSerializer setValue:@"Content-Type" forHTTPHeaderField:@"application/json"];
  [manager POST:@"SENSORED_OUT_URL" parameters:parameters
  
  success:^(AFHTTPRequestOperation *operation, id responseObject)
  {
      NSLog(@"JSON: %@", responseObject);
  }
  
  failure:^(AFHTTPRequestOperation *operation, NSError *error)
  {
      NSLog(@"Error: %@", error);
  }];
  </code></pre>
  
  <p>I'm receiving information through the same request, and want to send the data to a  <code>NSString</code>. How would I go about doing that with <code>AFNetworking</code>?</p>