curl --request POST \
  --url https://api.prod.polymarketexchange.com/v1/trading/orders/cancel/list \
  --header 'Content-Type: application/json' \
  --data '
{
  "requests": [
    {
      "orderId": "<string>",
      "clordId": "<string>",
      "symbol": "<string>"
    }
  ]
}
'

{
  "responses": [
    {}
  ]
}