curl --request POST \
  --url https://api.returnshelper.com/uat/user/api/outbound/consolidateShipping/inventory/add \
  --header 'Content-Type: application/json' \
  --header 'x-rr-apikey: <api-key>' \
  --header 'x-rr-apitoken: <api-key>' \
  --data '
{
  "consolidateShippingOrderId": "<string>",
  "returnInventoryIdList": [
    123
  ]
}
'