# File lib/u2f/sign_response.rb, line 5
    def self.load_from_json(json)
      data = ::JSON.parse(json)
      instance = new
      instance.client_data_json =
        ::U2F.urlsafe_decode64(data['clientData'])
      instance.client_data =
        ClientData.load_from_json(instance.client_data_json)
      instance.key_handle = data['keyHandle']
      instance.signature_data =
        ::U2F.urlsafe_decode64(data['signatureData'])
      instance
    end