{"type": {"key": "/type/author"}, "name": "John Singleton Advertising (Aust.)", "key": "/authors/OL15142402A", "source_records": ["marc:harvard_bibliographic_metadata/ab.bib.02.20150123.full.mrc:259659171:1279"], "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-03-15T23:12:03.846493"}, "last_modified": {"type": "/type/datetime", "value": "2025-03-15T23:12:03.846493"}}