curl --request POST \
  --url https://jobs-api.registercheck.de/api/v2/lists/{list_id}/items \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "entity_id": "<string>",
  "entity_name": "<string>",
  "is_company": true,
  "register_number": "<string>",
  "birth_date": "<string>",
  "notes": "<string>"
}'

{
  "entity_id": "<string>",
  "entity_name": "<string>",
  "is_company": true,
  "register_number": "<string>",
  "birth_date": "<string>",
  "notes": "<string>",
  "id": "<string>",
  "created_at": "<string>",
  "updated_at": "<string>",
  "watchlist_subscription_id": "<string>"
}