curl --request GET \
  --url https://api-message.nativehub.live/api/v1/campaigns/{id}/recipients \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "f2a3b4c5-d6e7-8901-fa23-456789012345",
      "campaign_id": "e1f2a3b4-c5d6-7890-ef12-345678901234",
      "phone_number": "+8801712345678",
      "status": "sent",
      "message_id": "d4e5f6a7-b8c9-0123-def4-567890123456",
      "created_at": "2026-02-14T08:30:00Z"
    }
  ],
  "total": 123,
  "page": 123,
  "per_page": 123
}