{"entity_type":"customer","entity_key":"C001","model_feature_service":"fraud_risk_service_v3","feature_view":"customer_velocity_1h","feature_event_ts":"2026-05-01T10:45:00Z","materialized_at":"2026-05-01T10:55:00Z","features":{"txn_count_1h":4.0,"total_amount_1h":195.75,"chargeback_count_30d":0.0}}
{"entity_type":"customer","entity_key":"C002","model_feature_service":"fraud_risk_service_v3","feature_view":"customer_velocity_1h","feature_event_ts":"2026-05-01T10:30:00Z","materialized_at":"2026-05-01T10:40:00Z","features":{"txn_count_1h":9.0,"total_amount_1h":880.10,"chargeback_count_30d":2.0}}
{"entity_type":"merchant","entity_key":"M010","model_feature_service":"fraud_risk_service_v3","feature_view":"merchant_risk_daily","feature_event_ts":"2026-05-01T00:00:00Z","materialized_at":"2026-05-01T01:00:00Z","features":{"merchant_dispute_rate_30d":0.018,"merchant_txn_count_30d":3920.0}}
{"entity_type":"merchant","entity_key":"M020","model_feature_service":"fraud_risk_service_v3","feature_view":"merchant_risk_daily","feature_event_ts":"2026-05-01T00:00:00Z","materialized_at":"2026-05-01T01:10:00Z","features":{"merchant_dispute_rate_30d":0.041,"merchant_txn_count_30d":870.0}}