path within the service</p></td><td>No</td></tr><tr id=Action-properties><td><code>properties</code></td><td><code>map&lt;string,&nbsp;<a href=/v1.10/zh/docs/reference/config/policy-and-telemetry/istio.policy.v1beta1.html#Value>Value</a>></code></td><td><p>Additional data about the action for use in policy.</p></td><td>No</td></tr></tbody></table></section><h2 id=Subject>Subject</h2><section><p>A subject contains a list of attributes that identify
the caller identity.</p><table class=message-fields><thead><