raw Json Object read from body in aspx page

{

"VisoBookingRef": "V18A003249",

"StartTimeUTC": "2018-11-20T20:00:00",

"EndTimeUTC": "2018-11-20T20:30:00",

"ClientFirstName": "Karam",

"ClientLastName": "john",

"ClientMobileNo": "00000000000",

"ClientBirthDate": "4/1/1945",

"AppointmentFor": null,

"ClientGender": "Male",

"PractitionerID": "ABC-P-00016",

"BranchID": "1"

}