Append your key and the token obtained from either Access/exchange-token or Access/impersonate to the querystring (key=mykey&token=kj123khb123hb123hb123jh123) or to the headers (Authorization:Bearer kj123khb123hb123hb123jh123) of your request.

{
  "CreatedDate": "2010-12-14T11:31:06.193Z",
  "CreatedDateF": "12/14/2010 6:31:06 AM",
  "DeletedDate": "0001-01-01T00:00:00.000Z",
  "DeletedDateF": "",
  "ID": 108,
  "ModifiedDate": "2011-05-18T18:43:24.683Z",
  "ModifiedDateF": "5/18/2011 2:43:24 PM",
  "ObjectPermissions": 79,
  "SID": "84070795-bbbc-414e-aaf1-683d6769cd93",
  "AddressLine1": "",
  "AddressLine2": "",
  "City": "",
  "ContactID": 108,
  "CostCenter": "",
  "Country": "",
  "Custom1": "",
  "Custom2": "",
  "DelegateName": "",
  "DelegateSid": "",
  "DelegationEnd": "0001-01-01T00:00:00.000Z",
  "DelegationEndF": "0001-01-01",
  "DelegationEndTime": "00:00",
  "DelegationProcesses": null,
  "DelegationProcessesNames": "",
  "DelegationStart": "0001-01-01T00:00:00.000Z",
  "DelegationStartF": "0001-01-01",
  "DelegationStartTime": "00:00",
  "Department": "",
  "Division": "",
  "Email": "jdoe@integrify.com",
  "IsActive": true,
  "LanguageID": "2a803d80-de6d-4adc-a642-4e3d831f5460",
  "Locale": "en-GB",
  "Location": "",
  "ManagerID": 0,
  "ManagerName": "",
  "ManagerSID": "",
  "Name": "John Doe",
  "NameFirst": "John",
  "NameLast": "Doe",
  "NameMiddle": "",
  "NetworkID": "John",
  "Password": null,
  "PasswordConfirm": null,
  "Phone": "",
  "Postal": "",
  "PrimaryGroupGUID": null,
  "Properties": null,
  "SignatureFile": "",
  "SignatureFileSID": "",
  "State": "",
  "TimeZone": "Pacific Standard Time",
  "Title": "",
  "UserName": "John"
}