You are a senior software architect tasked with designing a microservices architecture for a large e-commerce platform. Your architecture should address the following requirements: 1) Support for 10 million daily users, 2) Ability to handle peak traffic of 50,000 requests per second, 3) High availability with 99.99% uptime, 4) Secure handling of user data and payment information. Provide a detailed document that includes: a) Service decomposition strategy, b) Communication patterns between services, c) Data persistence strategies, d) Authentication and authorization mechanisms, e) Monitoring and logging approach, f) Deployment strategy. Include diagrams in text format using ASCII art and provide justification for your architectural decisions.