we are not receiving whatsapp message by using api geting below response

{"messaging_product":"whatsapp","contacts":[{"input":"919958735482","wa_id":"919958735482"}],"messages":[{"id":"wamid.HBgMOTE5OTU4NzM1NDgyFQIAERgSREMwOUNCOTVDQUY0QzEwMkUxAA=="}]}