{"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":"Obtain a new signature key: Generate a new signature key pair (private key and  public key) and ensure that it meets the requirements of the blockchain network."}]}],"pr":"c95cb2b6f991f066b338681c5d6d552d336741935d2c5966960ff69093e6d1e2"}