{
    "externalParentGroupId": "external-1",
    "externalGroupId":"external-6",
    "name":"group-a",
    "token":"n0f6b2dd9a20042dba696d51"
}curl --location --request POST '/public-api/user-group/external/add' \
--header 'Content-Type: application/json' \
--data-raw '{
    "externalParentGroupId": "external-1",
    "externalGroupId":"external-6",
    "name":"group-a",
    "token":"n0f6b2dd9a20042dba696d51"
}'{
    "result": "ok",
    "response": {
        "ugId": "nde6897f4637f4313878c576",
        "externalGroupId": "external-6"
    }
}