Hi every one this request send to my server and i

Question

Hi every one this request send to my server and i

shuold catch it

POST http://192.168.64.33:6100/mo/take HTTP/1.1
User-Agent: Fiddler
Content-Type: application/json
Host: 192.168.64.33:6100
Content-Length: 174

{
"msisdn": "989123379259",
"shortcode": "98307248",
"message": "sample",
"partnername": "",
"trans_id": "",
"datetime": "2017-12-16 16:40:56:1513429856"
}

But when I recive it the data has null !!!!!
and I cant get json data
any one can help me ?