curl --request GET \
  --url http://localhost:3000/v1/admin/partners/payouts/{partnerId}

{
  "partner_brand_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "company_name": "<string>",
  "contact_email": "<string>",
  "payout_method": "<string>",
  "periods": [
    {
      "period": "<string>",
      "sale_count": 123,
      "total_units": 123,
      "gross_sales": 123,
      "total_commission": 123,
      "net_to_partner": 123,
      "status": "pending"
    }
  ],
  "totals": {
    "pending_amount": 123,
    "included_amount": 123,
    "paid_amount": 123,
    "lifetime_sales": 123
  }
}