{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain, how to use the injectived tx sign command for transaction signing?","a":"Create a transaction object, including the basic information of the  transaction, such as the sender's address."}]}],"pr":"6396ee725309293b9497e017d630c15baaac4d7c540ea1f5cedfde0f80cf43a4"}