An agent tracks an object for updates.<br/><br/>
Related actions:<br/><br/>
<ul>
<li><a class="localLink" href="/FollowAction">FollowAction</a>: Unlike FollowAction, TrackAction refers to the interest on the location of innanimates objects.</li>
<li><a class="localLink" href="/SubscribeAction">SubscribeAction</a>: Unlike SubscribeAction, TrackAction refers to the interest on the location of innanimate objects.</li>
</ul>