PaymentDiscount Object

• identifier string - A string used to uniquely identify a discount offer for a product.用于唯一标识产品折扣优惠的字符串。
• keyIdentifier string - A string that identifies the key used to generate the signature.一个字符串，用于标识用于生成签名的密钥。
• nonce string - A universally unique ID (UUID) value that you define.您定义的通用唯一ID(UUID)值。
• signature string - A UTF-8 string representing the properties of a specific discount offer, cryptographically signed.一个UTF-8字符串，表示特定折扣优惠的属性，经过加密签名。
• timestamp number - The date and time of the signature's creation in milliseconds, formatted in Unix epoch time.以毫秒为单位创建签名的日期和时间，格式为Unix epoch时间。