curl --request GET \
  --url https://api.coldsend.pro/api/public/v1/replies \
  --header 'X-API-Key: <api-key>'

{
  "success": true,
  "message": "<string>",
  "threads": [
    {
      "thread_id": "<string>",
      "lead_email": "<string>",
      "lead_name": "<string>",
      "campaign_name": "<string>",
      "subject": "<string>",
      "last_message_preview": "<string>",
      "last_message_at": "2023-11-07T05:31:56Z",
      "is_read": true,
      "is_starred": true,
      "reply_count": 123,
      "lead_id": "<string>",
      "inbox_id": "<string>",
      "category": "<string>"
    }
  ],
  "total_count": 123,
  "page": 123,
  "limit": 123,
  "total_pages": 123,
  "has_next": true,
  "has_prev": true,
  "unread_count": 123,
  "starred_count": 123
}