/segments/{id}
curl -X GET "https://example.com/segments/497f6eca-6276-4993-bfeb-53cbbbba6f08"{ "object": "segment", "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08", "name": "string", "filter": { "match": "all", "conditions": [ { "field": "string", "op": "string", "value": "string" } ] }, "created_at": "string", "contact_count": 0}