how to send entitymodel in client-side?

Code

        URI uri = URI.create(request.getRequestURL() + "/" + post.getId());

        HttpHeaders headers = new HttpHeaders();
        HttpEntity httpEntity = new HttpEntity(entityModel, headers);
        var returnType = new ParameterizedTypeReference<EntityModel<Post>>() {};

        RestTemplate restTemplate = new RestTemplate(Arrays.asList(new MappingJackson2HttpMessageConverter()));
        restTemplate.setMessageConverters(Traverson.getDefaultMessageConverters(MediaTypes.HAL_JSON));
        var result = restTemplate.exchange(uri, HttpMethod.PUT, httpEntity, returnType);

Error
org.springframework.web.client.RestClientException: No HttpMessageConverter for org.springframework.hateoas.EntityModel
at org.springframework.web.client.RestTemplate$HttpEntityRequestCallback.doWithRequest(RestTemplate.java:961) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:737) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:714) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:632) ~[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]

Start with the RestTemplate.exchange call and the MappingJackson2HttpMessageConverter and Traverson.getDefaultMessageConverters setup shown in the report. Reproduce the No HttpMessageConverter exception using the EntityModel request body, then determine what configuration or supported request representation is expected. Done means the client can send the EntityModel without the reported RestClientException.