{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the format of the message?","a":"Encryption and Signature: To ensure the security of messages, encryption and signature processing can be performed  on messages to ensure the authenticity and integrity of the message."}]}],"pr":"25f0bbb3b23598cfac11e900f2632e40394d289015b964b8034b2b60e2adb08b"}