curl --request GET \
  --url https://api.example.com/brokerage-firms/{brokerageFirmId}

{
  "type": "<string>",
  "id": "<string>",
  "companyInfo": {
    "siret": "<string>",
    "siren": "<string>",
    "nafCode": "<string>",
    "nafLabel": "<string>",
    "name": "<string>",
    "creationDate": "<string>",
    "location": {
      "city": "<string>",
      "country": "<string>",
      "address": "<string>",
      "postCode": "<string>"
    },
    "legalStatus": {
      "1": "<string>",
      "2": "<string>",
      "3": "<string>"
    },
    "headcount": "<string>"
  },
  "createdAt": "2023-11-07T05:31:56Z",
  "tenantId": "<string>",
  "activeProducts": [
    "<string>"
  ],
  "inactiveProducts": [
    "<string>"
  ],
  "customFields": [
    {
      "key": "<string>",
      "value": "<string>"
    }
  ],
  "parentBrokerageFirmId": "<string>",
  "preferredPaymentMethodId": "<string>"
}