{
  "fdic_cert": "251",
  "institution_name": "First Security Bank",
  "address": {
    "zip": "51034",
    "city": "Mapleton",
    "state": "IA",
    "street": "401 Main St"
  },
  "charter_type": "NM",
  "total_assets": "67625",
  "active": true,
  "established_date": "10/03/1878",
  "slug": "first-security-bank-251",
  "matched_lei": null,
  "updated_at": "2026-07-16T19:22:21.789Z"
}