curl --request POST \
  --url https://api.example.com/public/v2/contacts \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "<string>",
  "linkedin_url": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "company_id": 123,
  "contact_custom_fields_input": [
    {
      "field_name": "<string>",
      "field_value": "<string>"
    }
  ],
  "origin": "<string>",
  "contact_status": "<string>"
}
'

{
  "id": 123,
  "updated_time": "2023-11-07T05:31:56Z",
  "first_name": "<string>",
  "last_name": "<string>",
  "origin": "<string>",
  "first_campaign_email_sent": "2023-11-07T05:31:56Z",
  "last_campaign_email_sent": "2023-11-07T05:31:56Z",
  "last_reply_received": "2023-11-07T05:31:56Z",
  "previous_status": "<string>",
  "status_changed_at": "2023-11-07T05:31:56Z",
  "email": "<string>",
  "linkedin_url": "<string>",
  "company_id": 123,
  "contact_custom_fields": [
    {
      "id": 123,
      "updated_time": "2023-11-07T05:31:56Z",
      "field_name": "<string>",
      "field_value": "<string>"
    }
  ],
  "contact_status": "<string>"
}