Fix add_payment_method to correctly retrieve the token from the plugin properties embedded in the payment_method data
Fix add_payment_method to correctly retrieve the token from the plugin properties embedded in the payment_method data

killbill/killbill-paypal-express-plugin,daliwei/killbill-paypal-express-plugin,killbill/killbill-paypal-express-plugin,daliwei/killbill-paypal-express-plugin,daliwei/killbill-paypal-express-plugin,killbill/killbill-paypal-express-plugin