ارسال بی‌صدا (Silent)

curl -X POST https://pushfa.com/api/webservices/send-single-message \
  -H "Content-Type: application/json" \
  -d '{
    "api_public_key": "YOUR_PUBLIC_KEY",
    "api_private_key": "YOUR_PRIVATE_KEY",
    "fcm_token": "USER_FCM_TOKEN",
    "title": "به‌روزرسانی موجودی",
    "body": "سبد خرید شما به‌روز شد",
    "silent": true,
    "sendTime": "current"
  }'