http://host:port/flexdeploy/rest/administration/changemanagementsystem

[{
   "name": "ServiceNow",
   "properties":    [
            {
         "name": "SN_URL",
         "displayName": "ServiceNow URL",
         "description": "ServiceNow URL",
         "dataType": "String",
         "isActive": true,
         "isRequired": true,
         "isEncrypted": false
      },
            {
         "name": "SN_PORT",
         "displayName": "ServiceNow Port",
         "description": "ServiceNow Port",
         "dataType": "String",
         "isActive": true,
         "isRequired": true,
         "isEncrypted": false
      },
            {
         "name": "SN_USER_NAME",
         "displayName": "ServiceNow User Name",
         "description": "ServiceNow User Name",
         "dataType": "String",
         "isActive": true,
         "isRequired": true,
         "isEncrypted": false
      },
            {
         "name": "SN_PASSWORD",
         "displayName": "ServiceNow Password",
         "description": "ServiceNow Password",
         "dataType": "String",
         "isActive": true,
         "isRequired": true,
         "isEncrypted": true
      },
            {
         "name": "SN_APPROVED_SCRIPT",
         "displayName": "Approved Check Script",
         "description": "ServiceNow approved check Groovy script",
         "dataType": "String",
         "isActive": true,
         "isRequired": false,
         "isEncrypted": false
      },
            {
         "name": "SN_REJECTED_SCRIPT",
         "displayName": "Rejected Check Script",
         "description": "ServiceNow rejected check Groovy script",
         "dataType": "String",
         "isActive": true,
         "isRequired": false,
         "isEncrypted": false
      },
            {
         "name": "SN_DONT_POLL",
         "displayName": "Don't poll",
         "description": "Disable automatic polling (every minute) of ServiceNow tickets for status changes. Check if using REST API to communicate status changes to FlexDeploy.",
         "dataType": "Boolean",
         "isActive": true,
         "isRequired": false,
         "isEncrypted": false
      }
   ],
   "id": 1
}