curl --request GET \
  --url https://api.example.com/brokerage-fees

{
  "fees": [
    {
      "productId": "<string>",
      "id": "<string>",
      "minCommission": 50,
      "maxCommission": 50,
      "defaultCommission": 50,
      "minCommissionLimit": 50,
      "maxCommissionLimit": 50,
      "minTotalCommission": 50,
      "maxTotalCommission": 50,
      "minManagementFee": 1,
      "maxManagementFee": 1
    }
  ]
}