{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to change the signature key for an account in a blockchain network?","a":"Backup the original key: Before  replacing the signature key, make sure to backup the original private key and public key in case of loss or malicious tampering."}]}],"pr":"fa0cbeac103d35eaa1498dcf3c5f2d8844998a7cf3b52868d7f89d254e071d2f"}