curl --request GET \
  --url https://api.example.com/existing-systems/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "name": "<string>",
  "href": "<string>",
  "type": "HOST",
  "platform_model": "<string>",
  "total_physical_cpus": "<string>",
  "cores_per_cpu": "<string>",
  "memory": "<string>",
  "total_logical_cpus": "<string>",
  "threads_per_core": "<string>",
  "cpu_speed": "<string>",
  "cpu_model": "<string>",
  "entity_type": "<string>",
  "entity_role_name": "<string>",
  "parent": "<string>",
  "children": "<string>",
  "os": "<string>",
  "os_version": "<string>",
  "os_patch_level": "<string>",
  "ip_address": "<string>",
  "mac_address": "<string>",
  "serial_number": "<string>",
  "hostId": "<string>",
  "control_environment": {
    "id": "<string>",
    "name": "<string>",
    "platform_category": "External Cloud",
    "href": "<string>",
    "icon": "<string>"
  },
  "infrastructure_group": {
    "id": "<string>",
    "name": "<string>",
    "href": "<string>"
  },
  "cpu_benchmarks": [
    {
      "name": "<string>",
      "score_type": "<string>",
      "value": 123
    }
  ],
  "I/O_benchmarks": [
    {
      "name": "<string>",
      "score_type": "<string>",
      "value": 123
    }
  ],
  "size": "<string>"
}