Receiving 605 Request method 'POST' not supported for pushToMarketo endpoint

Hi,

I'm trying to add member to program via REST API.

It seems like pushToMarketo endpoint works good.

http://developers.marketo.com/rest-api/endpoint-reference/lead-database-endpoint-reference/#!/Leads/pushToMarketoUsingPO…

But actually pushToMarketo endpoint returns error like below.

{

  "requestId": "7987#15728dda713",

  "success": false,

  "errors": [

    {

      "code": "605",

      "message": "Request method 'POST' not supported"

    }

  ]

}

I send POST request but response said POST not supported.

Is the pushToMaketo API is not supported?