{"event_id":"e-001","event_ts":"2026-05-01T08:55:00","customer_id":"C001","event_type":"campaign_click","campaign":{"campaign_id":"CAMP-SUMMER","channel":"mobile_push","utm_source":"app"}}
{"event_id":"e-002","event_ts":"2026-05-01T10:12:00","customer_id":"C002","event_type":"campaign_click","campaign":{"campaign_id":"CAMP-SUMMER","channel":"email","utm_source":"newsletter"}}
{"event_id":"e-003","event_ts":"2026-05-02T13:58:00","customer_id":"C001","event_type":"campaign_click","campaign":{"campaign_id":"CAMP-LOYALTY","channel":"sms","utm_source":"crm"}}
{"event_id":"e-004","event_ts":"2026-05-03T07:40:00","customer_id":"C004","event_type":"search_click","campaign":{"campaign_id":"CAMP-SEARCH","channel":"search","utm_source":"marketplace"}}