{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to execute the operation of increasing the margin deposit in the derivative market within the blockchain?","a":"Signing and verification: To ensure  the security and validity of the transaction, the user needs to sign the transaction. The signature will be used to verify that the user has authorized the transaction and that the associated funds have been locked in the user's account."}]}],"pr":"603f261c46565c4aa0610d2e398becc2adccacb0d5fb1c03e3eb9fc47488e7a5"}