curl --data '{"api_key": "4f613847a411391f8eacf203c2f3062e", "events": [{"user_id": "john_doe@gmail.com", "event_type": "watch_tutorial", "user_properties": {"Cohort": "Test A"}, "country": "United States", "ip": "127.0.0.1"}]}' https://api2.amplitude.com/2/httpapi