[HideInInspector]
public string topPlayer = PlayerPrefs.GetString("TopPlayer");

public void OnInputClicked(InputClickedEventData eventData)
{
    //UnityWebRequest request = UnityWebRequest.Post("https://hipchat.getconnected.it/v2/room/91/message", formData);

    StartCoroutine(dani());

}

IEnumerator dani()
{
    //string message = "{ "message": "dani2"}";
    string message = "{ "message": "topPlayer"}";
    UnityWebRequest request = UnityWebRequest.Post("https://hipchat.getconnected.it/xxx", message);
    request.SetRequestHeader("authorization", "Bearer xxx");
    request.SetRequestHeader("content-type", "application/json");
    byte[] data = System.Text.Encoding.UTF8.GetBytes(message);
    UploadHandlerRaw upHandler = new UploadHandlerRaw(data);
    upHandler.contentType = "application/json";
    request.uploadHandler = upHandler;


    yield return request.Send();

    if (request.isError)
    {
        Debug.Log(request.error);
    }
    else
    {
        Debug.Log("Form upload complete!");
    }
}

string message = string.Format("{ "message": "{0}"}",topPlayer);