I'm trying to use an AFHTTPRequestOperation (via an AFHTTPRequestOperationManager) to transmit some information (say, "foo = bar") to an backend expecting JSON, using a setup like this:

```
- (void) postTest {
NSString *completePath = @"https://httpbin.org/post";
NSDictionary *dataToJSONfy = @{@"foo":@"bar"};
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: dataToJSONfy options:kNilOptions error:&error];

NSMutableURLRequest *request = [self.requestSerializer requestWithMethod:@"POST" URLString:completePath parameters:nil];
request.cachePolicy = NSURLRequestReloadIgnoringLocalAndRemoteCacheData;
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:jsonData];

AFHTTPRequestOperation *operation =
[self HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id JSON) {
    NSLog(@"... success! %@", JSON);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"... failure! Error: %@", error);
}];

[self.operationQueue addOperation:operation];
}

```

Which shows up like this

```
{
args =     {
};
data = "{\"foo\":\"bar\"}";
files =     {
};
form =     {
};
headers =     {
    [...]
};
json =     {
    foo = bar;
};
origin = [...];
url = "http://httpbin.org/post";
}

```

**Question:** what would I need to change in order to include my information ("foo = bar;") in the 'form =' section of the body rather than the 'json =' bit?