Send attachment from Servicenow to JIRA using REST API

I am working in ServiceNow to JIRA integration using REST API, I have implemented all the fields to create JIRA issue.

I am currently trying to send attachment from ServiceNow to JIRA ticket using mid server.

I used the below code as example in the post Jira REST Integration - How to send attachment? :

var request = new sn_ws.RESTMessageV2();

              request.setHttpMethod('post');

              request.setRequestHeader("X-Atlassian-Token","no-check");

                request.setRequestHeader("Content-type","multipart/form-data");

              request.setEndpoint('https://{jiraURL}/rest/api/2/issue/SN-2/attachments');

              request.setBasicAuth("username","password");

              request.setRequestBodyFromAttachment('abd7460b0fe39e001dc906ace1050e9f'); //sys_id of attachment record

            var response = request.execute();

I am getting error in ECC Queue as 'attachment does not exists'

If anyone implemented this , please let me know .

Thanks in Advance.