curl --request PATCH \
  --url https://api.truecold.io/v1/handling-units/{id} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "code": "25-BCN-XA43N",
  "material_code": "H-0023S",
  "zone_id": "382bc9c0-6a3b-4255-97f4-98e91ceab047",
  "delivery_id": "382bc9c0-6a3b-4255-97f4-98e91ceab047"
}'

{
  "error": false,
  "data": {
    "id": "<string>",
    "created_at": "<string>",
    "code": "<string>",
    "material_code": "<string>",
    "account_id": "<string>",
    "material_id": "<string>"
  }
}