Unable to retrieve package information

Hi , I am trying to call the RETRIEVE INFORMATION ABOUT A PACKAGE api and getting the below error. Can you please let me know why i am seeing this error. I have pasted my code below. GET request for "https://sandbox.e-signlive.com/api/packages/hT6KgjULdVx6sJsGN20GVqrWCFw=" resulted in 404 (Not Found); invoking error handler Exception in thread "main" org.springframework.web.client.HttpClientErrorException: 404 Not Found at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91) at org.springframework.web.client.RestTemplate.handleResponseError(RestTemplate.java:588) at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:546) at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:510) at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:453) at com.unionbank.soa.api.esign.service.OneSpanServices.main(OneSpanServices.java:35) Code: public static void main(String args[]){ String url = "https://sandbox.e-signlive.com/api/packages/{packageId}"; RestTemplate restTemplate = new RestTemplate(); HttpHeaders headers = new HttpHeaders(); String encodedAuth = "*****"; // i am passing the api key here String authHeader = IWebserviceConstants.BASIC + encodedAuth; headers.set(IWebserviceConstants.AUTHORIZATION , authHeader); headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); HttpEntity entity = new HttpEntity("parameters", headers); Map params = new HashMap(); params.put("packageId", "hT6KgjULdVx6sJsGN20GVqrWCFw="); ResponseEntity result = restTemplate.exchange(url, HttpMethod.GET, entity, Package.class,params); System.out.println(result); }