How make http request using form data by rest template?

I can execute following http request using postman: As you can see result:

{
    "succes":false
}

Now I need to execute same request using restTemplate.

To achieve it I have wrote following code:

 MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
 map.add("secret", "6Le8YwMTAAAAADTIDNBvjxg-x83jt5QvPN-dFGWs");
 map.add("response", recapchaResponse);

 HttpHeaders headers = new HttpHeaders();
 HttpEntity<?> entity = new HttpEntity<Map>(map, headers);
 restTemplate.exchange("http://ift.tt/1AMIfbj", HttpMethod.POST, entity,ReCaptchaResponse.class);

When I executes following code in debug I see following response:

As you can see response contains errors. Looks like response and secret is not received by server. why?

What do I wrong?

P.S.

I have wrote analog using httpClient

        HttpClient client = new HttpClient();
        PostMethod postMethod = new PostMethod("http://ift.tt/1AMIfbj");
        postMethod.setParameter("secret", "6Le8YwMTAAAAADTIDNBvjxg-x83jt5QvPN-dFGWs");
        postMethod.setParameter("response", recapchaResponse);
        client.executeMethod(postMethod);
        String responseFromServer = new String(postMethod.getResponseBody());

It works good.