While using Advanced Employee Updater API using Postman got error Employee data not valid JSON

I am using Advance Employee Updater API for user provision and deprovision. But when I am running in postman I assigned values to requestJobDescription and data in JSON format using body x-www-for-urlencoded. But on execution I am getting error Employee data not valid JSON.

In data field I entered

{

"employeeEmail": "employee@domain.ml",

"managerEmail": "manager@domain.ml",

"policyID": "My policy ID"

}

Please help me out to solve this error.