entityKey and primary key id.entityKey. The record's own columns appear at the top level and related data is nested under the relation name.custom_data.401.curl --location --globoff 'https://.daftra.com/v2/api/entity/v2/api/entity/client/12/2' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer ' \
--header 'apikey: ' \
--header 'Content-Type: application/json'{
"id": 12,
"custom_data": {}
}