Create new user

{
  "userName": "DelphixUser1",
  "password": "Password_123",
  "firstName": "First",
  "lastName": "Last",
  "email": "user@delphix.com",
  "isAdmin": false,
  "showWelcome": true,
  "userStatus": "ACTIVE",
  "nonAdminProperties": {
    "roleId": 1,
    "environmentIds": [
      1
    ]
  }
}