JSON to XML conversion using NXSD Schema if Element name is unknow at design time

<xsd:element name="_errors" minOccurs="0">

            <xsd:complexType>

              <xsd:sequence>

               <xsd:element name="XYZ"> --

                 <xsd:complexType>

                  <xsd:sequence>

                    <xsd:element name="ID" type="xsd:string"/>

                    <xsd:element name="Detail" type="xsd:string"/>

                  </xsd:sequence>

                 </xsd:complexType>

--- if inbound message have different element name other than 'XYZ' defined in NXSD schema . NXSD will ignore if element is not found .

How could we handle this type of scenario where element name is unknow at design time.?