curl -X POST https://api.insightssystem.com/api:-GWQv5aM/send \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_TOKEN_HERE" \
-d '{
  "phone": "+1234567890",
  "text": "Hello, this is a test message from Notifier!",
  "attachment": "https://example.com/image.jpg",
  "filename": "image.jpg"
}'

{
  "message": "<string>"
}