如何使用postman rest客户端向以下post方法发送post请求

我只想知道，如何将JSON对象发送到方法，通过postman rest客户端进行注释。在这里，如何传递JSON对象来创建TrackInJSON（Track track）方法，用@Post注释？createTrackInJSON(Track track)@Post

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import com.mkyong.Track;

@Path("/json/metallica")
public class JSONService {

    @GET
    @Path("/get")
    @Produces(MediaType.APPLICATION_JSON)
    public Track getTrackInJSON() {

        Track track = new Track();
        track.setTitle("Enter Sandman");
        track.setSinger("Metallica");
        System.out.println("inside get method . . .");
        return track;

    }

    @POST
    @Path("/post")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response createTrackInJSON(Track track) {
        System.out.println("inside post method . .");
        String result = "Track saved : " + track;
        return Response.status(201).entity(result).build();

    }

}

//Track class is:

public class Track {
String title;
String singer;

public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

public String getSinger() {
    return singer;
}

public void setSinger(String singer) {
    this.singer = singer;
}

@Override
public String toString() {
    return "Track [title=" + title + ", singer=" + singer + "]";
}

}