curl --request PATCH \
  --url https://{defaultHost}/v1/affiliation_products/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "affiliation_product": {
    "commission_structure": {
      "percent_commission": 33.33
    }
  }
}
'

{
  "id": "532d9013-febc-40c6-b39c-be25b5f4ed7b",
  "object": "affiliation_product",
  "affiliation": "36b86bf7-9ee1-4308-8f65-20a87390f53a",
  "product": "6979657a-2484-4e5d-8b21-facad7147ab0",
  "commission_structure": "55300ad1-122b-4a2a-8cf7-640aed4ab421",
  "created_at": 1780335046,
  "updated_at": 1780335046
}