Retrieves an user

curl --request GET \
  --url https://api.rootly.com/v1/users/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "517",
    "type": "users",
    "attributes": {
      "name": "Cathi Lind",
      "email": "phillip.yost@langosh.example",
      "phone": null,
      "phone_2": null,
      "first_name": "Cathi",
      "last_name": "Lind",
      "full_name": "Cathi Lind",
      "full_name_with_team": "[Rogahn LLC] Cathi Lind",
      "slack_id": null,
      "time_zone": "Etc/UTC",
      "updated_at": "2025-09-15T12:16:48.015-07:00",
      "created_at": "2025-09-15T12:16:47.533-07:00"
    },
    "relationships": {
      "email_addresses": {
        "data": [
          {
            "id": "620d1f60-de02-4925-b431-229f5768ee2d",
            "type": "user_email_addresses"
          }
        ]
      },
      "phone_numbers": {
        "data": []
      },
      "devices": {
        "data": []
      },
      "role": {
        "data": {
          "id": "4db55250-5a35-4cfd-94ca-2219b06b54a9",
          "type": "roles"
        }
      },
      "on_call_role": {
        "data": {
          "id": "6c4a11a3-83d0-4c88-b86e-109ab8e0e3b3",
          "type": "on_call_roles"
        }
      }
    }
  }
}