Connect to WS security server using RSA signature PHP

I'm working with a soap client, trying to send and receive soap calls using PHP. Server have ws-security set up, and use an x.509 certificate for authentication. I need to digitally sign the SOAP message and send the request to the Server. I need your help to generate a valid signature and valid message structure which is acceptable at server. You can see the sample request here: [login to view URL] I already generated the structure but failed to verify signature. I am facing issue in signature generation. I need your help to generate the valid signatures. Right now server sends response *RSA signature did not verify*, You need to create a soap request with valid RSA signature which must be acceptable on server, without any fault response. Please note: Requested server does not provide any sample code in PHP, So you need to create the PHP code as per the sample response and documentation.