curl -X PUT "https://prospect-api.smartlead.ai/api/v1/search-email-leads/search-filters/save-search/327105?api_key=YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"search_string": "Directors and VPs in United States"}'

{
  "success": true,
  "message": "Saved search updated successfully"
}

{
  "statusCode": 401,
  "success": false,
  "message": "Unauthorized",
  "error": "User not authenticated"
}