Валидация подписчика

{
    "email": "test@example.com",
    "source": 49767
}

{
    "id": 305384342,
    "mg_hash": "b9827434aeaa159e4c3a723a4a3e91d",
    "email": "test@internet.ru",
    "source": 93455916,
    "email_status": "wait_activated",
    "corrected_email": "test@internet.ru",
    "name": "",
    "patronymic": "",
    "surname": "",
    "gender": 0,
    "birthday": null,
    "phone": null,
    "city": null,
    "country": null,
    "is_valid": true,
    "doi_is_delivery": false,
    "doi_is_open": false,
    "doi_is_click": false,
    "user_vars": {},
    "bunce_log": null,
    "tags": [],
    "categories": [],
    "created": "2025-10-23T17:19:02.635703"
}

{
    "status": "invalid",
    "error": {
        "source": [
            "Это поле обязательно."
        ],
        "email": [
            "Это поле обязательно."
        ]
    }
}