HTTP Code: 200
Response:
{
    "messaging_product": "whatsapp",
    "contacts": [
        {
            "input": "919818596699",
            "wa_id": "919818596699"
        }
    ],
    "messages": [
        {
            "id": "wamid.HBgMOTE5ODE4NTk2Njk5FQIAERgSODJBREYxREVCQjEzN0MwMkIzAA=="
        }
    ]
}

DB Logged wa_message_id: wamid.HBgMOTE5ODE4NTk2Njk5FQIAERgSODJBREYxREVCQjEzN0MwMkIzAA==