{"message_id": "msg_1776264904673", "timestamp": "2026-04-15T14:55:04.673740", "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": "2a7f74a2-a6cf-4e13-baff-0bab5d8adc71", "region": "us-east-1", "optimization": "artificial_delay_removed"}