{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why is it necessary to recover the rent deposit for program data account on the blockchain?","a":"Why is it necessary to recover the rental deposit  of program data accounts on the blockchain?"}]}],"pr":"ee1493ac3d2313d989ba8eda7ed7819dbe7b7aea775b9091a82b8bac7af6db99"}