{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to change the signature key of an account in a blockchain network?","a":"Create a recovery key: Use the original signature key and the new  signature key to generate a recovery key. The recovery key is used to recover the original signature key and the new signature key."}]}],"pr":"f2cd8b92cf0b50b8823a974cde0025717bad10f83f370f39e1cdd53682ba5c89"}