How to check post request

edit

captured HTTP post request the data. but how to test the data don't know. please anyone can help me

POST /recoStar/recoStarHost.svc/PostNowNextChannel? HTTP/1.1
apikey: f47aea8bdcbd1179a1f3d91e6afeeb259488f2d1
responseformat: json
responselanguage: English
pageno: 1
context: headendid=1075;applicationname=androidapp;programmeimagedimension=medium;channelimagedimension=medium;sortfield=lcn
channellist: Bharat Samachar,Zee Business,CNBC-Awaaz,Mirror Now,NDTV Profit Prime,CNBC TV18 Prime HD,CNBC TV18,BTVI,ET Now,CNBC Bajar
userid: 3320066
Content-Length: 0
Host: services.xxxxxx.com
Connection: Keep-Alive
User-Agent: Apache-HttpClient/UNAVAILABLE (java 1.4)

i want to test through web browser, or curl or postman