{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are gas fees calculated in the blockchain?","a":"Calculate natural gas fees: According to the tier and  the corresponding fee standards, calculate the natural gas fees that users need to pay. In general, natural gas fees increase gradually at each tier."}]}],"pr":"5038d691b1a19b546d9d9087e0f57ab2247e867c2517fbf7921d3604dbf1c014"}