{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to recharge sub-accounts through event handling in blockchain?","a":"Receive recharge request: When a user-initiated recharge request is received, validate the request to ensure  its validity."}]}],"pr":"a6a7aeee427bf5fb076fc2212c263af34313f95fe2326828724c4f5a2d38b2cc"}