NSNotification subscribe for request notification

NSNotification subscribe for request notification.m

- (void) loadModel
{
	NSString *accountRequestNotificationIdentifier = @"AccountRequest";

	[[NSNotificationCenter defaultCenter] addObserverForName:accountRequestNotificationIdentifier object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {

		//update the Accounts model

	}];

	id<SODataRequestExecution> requestExecution = [myStore scheduleReadEntitySet:@"Accounts" delegate:self options:nil];
	requestExecution.request.customTag = accountRequestNotificationIdentifier;
}