curl --request POST \
  --url https://cloud.memsource.com/web/api2/v1/termBases/{termBaseUid}/concepts \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "subdomains": [
    {
      "uid": "<string>"
    }
  ],
  "definition": "<string>",
  "url": "<string>",
  "conceptNote": "<string>",
  "customFields": [
    {
      "fieldName": "<string>",
      "value": {}
    }
  ]
}
'

{
  "id": "<string>",
  "domain": {
    "id": "<string>",
    "uid": "<string>",
    "name": "<string>"
  },
  "subdomains": [
    {
      "id": "<string>",
      "uid": "<string>",
      "name": "<string>"
    }
  ],
  "url": "<string>",
  "definition": "<string>",
  "conceptNote": "<string>",
  "customFields": [
    {
      "fieldName": "<string>",
      "value": {}
    }
  ]
}