Change the status of workitem in RTC(4.0) using REST API

Hi Team,

I have tried to change the status of workitem using Rest Api in RTC 4.0.6. But not able to update status of workitem.

Headers:
Accept:text/json
Content-Type:application/x-oslc-cm-change-request+json
If-Match:29c27c1b-cbfa-3745-baf6

URL:
https://ratsuitein131.in.dst.ibm.com:9444/ccm/resource/itemName/com.ibm.team.workitem.WorkItem/102066

JSON Body
{
"dc:identifier":102066,
  "rtc_cm:state":{
    "rdf:resource":"https://ratsuitein131.in.dst.ibm.com:9444/ccm/oslc/workflows/_S-BFgSK4EeKBhX83Q/states/bugzillaWorkflow/3"
   }
}

Using PUT Method return these response.

Response Headers
    Status Code: 412 Precondition Failed
    Cache-Control: private, max-age=0, must-revalidate
    Connection: Close
    Content-Language: en-US
    Content-Type: text/json;charset=UTF-8
    Date: Thu, 01 Jan 2015 07:11:55 GMT
    Expires: Thu, 01 Jan 2015 07:11:56 GMT
    Transfer-Encoding: chunked
    Vary: Accept
    X-Powered-By: Servlet/3.0

Respose Body
{
    "oslc_cm:message": "CRJAZ0007I Unable to update the item identified by \"https:\/\/ratsuitein131.in.dst.ibm.com:9444\/ccm\/service

\/com.ibm.team.repository.common.internal.IItemRestService\/itemName\/com.ibm.team.workitem.WorkItem\/102066\" - there is a later version of this item available.",
    "oslc_cm:status": 412
}


Some ref link that I already have followed:

https://jazz.net/forum/questions/45192/update-workitem-status-with-oslc-api.
https://jazz.net/forum/questions/32674/change-workitem-state-via-rest?redirect=%2Fforum%2Fquestions%2F32674%2Fchange-workitem-state-via-rest
https://jazz.net/wiki/bin/view/Main/ResourceOrientedWorkItemAPIv2#Update_a_Work_Item
https://www.youtube.com/watch?v=eXVWtiuygr0

I would appreciate if anyone could gives some lights.

Regards,
Rupam