curl -X POST "https://api.finscreener.in/api/crm/newlead" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "entity_type": "gst",
    "identifier": "27AABCU9603R1ZM"
  }'

{
  "success": true,
  "entity_type": "gst",
  "identifier": "27AABCU9603R1ZM",
  "lead": {
    "Last_Name": "EXAMPLE TRADERS",
    "Company": "EXAMPLE TRADERS",
    "Email": "contact@example.com",
    "Phone": null,
    "City": "Mumbai",
    "State": "Maharashtra",
    "Lead_Source": "Finscreener",
    "GSTIN": "27AABCU9603R1ZM"
  },
  "full_data": {
    "company": null,
    "directors": [],
    "gst": [
      {
        "GSTIN": "27AABCU9603R1ZM",
        "TradeName": "EXAMPLE TRADERS",
        "Status": "Active"
      }
    ]
  }
}

{
  "detail": "Subscription required: An active subscription or offer is required to access recently registered GSTs."
}