android - Response from gcm server -

when i'm trying send message gmc server response : id=0:1369151570496475%5193e1bc66d6cf16

and notification not being recieved. response mean? sorry english ;]

public string sendnotification(string deviceid, string message) {         string googleappid = "xxxxx";         var sender_id = "xxx";         var value = message;         webrequest trequest;         trequest = webrequest.create("https://android.googleapis.com/gcm/send");         trequest.method = "post";         trequest.contenttype = " application/x-www-form-urlencoded;charset=utf-8";         trequest.headers.add(string.format("authorization: key={0}", googleappid));         trequest.headers.add(string.format("sender: id={0}", sender_id));          string postdata = "collapse_key=score_update&time_to_live=108&delay_while_idle=1&data.message=" + value + "&data.time=" + system.datetime.now.tostring() + "&registration_id=" + deviceid;         console.writeline(postdata);         byte[] bytearray = encoding.utf8.getbytes(postdata);         trequest.contentlength = bytearray.length;          stream datastream = trequest.getrequeststream();         datastream.write(bytearray, 0, bytearray.length);         datastream.close();          webresponse tresponse = trequest.getresponse();          datastream = tresponse.getresponsestream();          streamreader treader = new streamreader(datastream);          string sresponsefromserver = treader.readtoend();           treader.close();         datastream.close();         tresponse.close();          return sresponsefromserver;     }