curl --request GET \
  --url https://api.bluumfinance.com/v1/investors/{investor_id}/cash-management/earnings \
  --header 'Authorization: Basic <encoded-value>'

{
  "object": "cash_management_earnings",
  "livemode": true,
  "cash_management_account_id": "<string>",
  "currency": "<string>",
  "period": {
    "start": "<string>",
    "end": "<string>"
  },
  "gross_earnings": "<string>",
  "bluum_fee": "<string>",
  "tenant_fee": "<string>",
  "net_earnings": "<string>",
  "average_balance": "<string>",
  "average_net_yield": "<string>"
}