X-API-KEY: ********************curl --location --request GET '/api/whiteboard/v1/attribute//' \
--header 'X-API-KEY: <api-key>'{
"whiteboard_object_id": 1,
"class_conf_attribute_id": 1,
"id": 1,
"attribute_name": "",
"attribute_type": "string_type",
"attribute_value": {},
"formula": ""
}