{
  "request_status": "success",
  "message": "Crosswalk for 511210: 2022 → 2017",
  "data": {
    "code": "511210",
    "from_year": 2022,
    "to_year": 2017,
    "mappings": []
  },
  "data_sources": [
    {
      "source": "census_naics",
      "dataset": "NAICS 2022",
      "cache": "miss",
      "data_url": "https://www.census.gov/naics/",
      "updated": "2025-01"
    }
  ]
}