{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to achieve the revocation of authorization?","a":"Written notice: To  ensure the smooth implementation of revoking the authorization, you need to notify the authorized person in writing. The written notice should include the reason for revoking the authorization, the time of revocation, and the follow-up measures."}]}],"pr":"555e373c541423c9865ed5fb1ab4b7e2940e7ab728fe71fc6cbab1aead0b3a64"}