{"message_id": "msg_1776223813354", "timestamp": "2026-04-15T03:30:13.354143", "content": "Hello from Lambda! This is an optimized chat response with no artificial delay.", "user_id": "user_123", "actual_processing_time_ms": 0.01, "source_ip": "unknown", "lambda_request_id": "3f25d1fb-0b02-4c45-96f0-00daa704b2ad", "region": "us-east-1", "optimization": "artificial_delay_removed"}