preparedmessageSend

<soapenv:Envelope 
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
    xmlns:ecm="http://ecircle.com/developer/ecmapi">
   <soapenv:Header/>
   <soapenv:Body>
      <ecm:preparedmessageSend>
         <preparedMessageId>667</preparedMessageId>
         <sendDateTime>1564146875000</sendDateTime>
         <!--Optional:-->
         <processingDateTime>1564146875000</processingDateTime>
         <!--Optional:-->
         <selectionId>231</selectionId>
      </ecm:preparedmessageSend>
   </soapenv:Body>
</soapenv:Envelope>