curl --request POST \
  --url https://connect.penbox.io/v1/cases/{id}/contacts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contacts": [
    {
      "key": "<string>",
      "email": "[email protected]",
      "name": "<string>",
      "given_name": "<string>",
      "family_name": "<string>",
      "phone": "<string>"
    }
  ]
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "title": "<string>",
  "parent_status": "draft",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "description": "<string>",
  "locale": "<string>",
  "reference": "<string>",
  "status": "<string>",
  "waiting_for": "none",
  "archived_at": "2023-11-07T05:31:56Z",
  "contacts": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "key": "<string>",
      "name": "<string>",
      "email": "[email protected]",
      "given_name": "<string>",
      "family_name": "<string>",
      "phone": "<string>"
    }
  ],
  "template": "<string>",
  "owner": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "email": "[email protected]",
    "given_name": "<string>",
    "family_name": "<string>"
  },
  "steps": [
    {
      "id": "<string>",
      "title": "<string>",
      "status": "<string>",
      "data": {}
    }
  ],
  "schema": [
    {
      "key": "<string>",
      "type": "<string>",
      "value": "<unknown>",
      "name": "<string>"
    }
  ]
}