{"event_id": "evt_001", "user": {"id": 123, "name": "Alice", "profile": {"email": "alice@test.com", "preferences": {"theme": "dark", "notifications": true}}}, "actions": [{"type": "click", "timestamp": "2023-01-01T10:00:00Z"}, {"type": "view", "timestamp": "2023-01-01T10:01:00Z"}], "metadata": {"source": "web", "device": "desktop"}}
{"event_id": "evt_002", "user": {"id": 456, "name": "Bob", "profile": {"email": "bob@test.com", "preferences": {"theme": "light", "notifications": false}}}, "actions": [{"type": "purchase", "timestamp": "2023-01-01T11:00:00Z", "amount": 29.99}], "metadata": {"source": "mobile", "device": "android", "version": "1.2.3"}}
{"event_id": "evt_003", "user": {"id": 789, "name": "Charlie", "profile": {"email": "charlie@test.com"}}, "actions": [{"type": "login", "timestamp": "2023-01-01T12:00:00Z"}, {"type": "logout", "timestamp": "2023-01-01T12:30:00Z"}], "tags": ["premium", "beta"], "metadata": {"source": "web"}}
{"event_id": "evt_004", "user": {"id": 101, "name": "Diana", "profile": {"email": "diana@test.com", "preferences": {"theme": "auto"}}}, "actions": [], "tags": ["new_user"], "metadata": {"source": "mobile", "device": "ios", "referrer": "google"}}
{"event_id": "evt_005", "user": {"id": 202, "name": "Eve"}, "actions": [{"type": "search", "timestamp": "2023-01-01T13:00:00Z", "query": "machine learning", "results": 42}], "nested": {"deep": {"very": {"nested": {"value": "found"}}}}, "metadata": {"source": "api"}}