{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the considerations to keep in mind when choosing a service provider for blockchain upgrading?","a":"User experience: During the upgrade process, service providers should focus on user experience  to ensure"}]}],"pr":"ee423bec021cb963abf5e14184a1cfdfbf19891f48a371d0d543f083d3a28054"}