curl --request GET \
  --url https://api.gcore.com/iam/users/{userId} \
  --header 'Authorization: <api-key>'

{
  "id": 123,
  "email": "jsmith@example.com",
  "name": "<string>",
  "lang": "de",
  "phone": "<string>",
  "company": "<string>",
  "reseller": 123,
  "client": 123,
  "deleted": true,
  "groups": [
    {
      "id": 1,
      "name": "Administrators"
    }
  ],
  "activated": true,
  "sso_auth": true,
  "two_fa": true,
  "auth_types": [
    "password"
  ],
  "user_type": "common",
  "is_active": true,
  "client_and_roles": [
    {
      "client_id": 123,
      "client_company_name": "<string>",
      "user_roles": [
        "2"
      ],
      "user_id": 123
    }
  ]
}