{
  "event": "customer.updated",
  "timestamp": "2026-06-23T14:30:00.000Z",
  "organizationId": "8f14e45f-ceea-4e7a-9c3d-1c2b3a4d5e6f",
  "mode": "live",
  "apiVersion": "2026-08-27",
  "data": {
    "id": "cus_1a2b3c4d",
    "externalId": "user_123",
    "fullName": "Ada Lovelace",
    "email": "ada.lovelace@acme.com",
    "taxDocument": "20-12345678-9",
    "documentType": "CUIT",
    "timezone": "Europe/London",
    "metadata": {
      "plan_intent": "pro"
    },
    "createdAt": "2026-03-25T14:29:00.000Z",
    "updatedAt": "2026-04-02T09:10:00.000Z"
  }
}