Japan Payment as a Service Market Size, Share, Competitive Landscape and Trend Analysis Report, by Component (Platform, Service), by Payment Method (Cards, App/eWallet, Automated Clearing House (ACH), Others), by Industry Vertical (BFSI, IT and Telecom, Healthcare, Retail and Ecommerce, Media and Entertainment, Government and Utilities, Travel and Hospitality, Others): Opportunity Analysis and Industry Forecast, 2021-2031