The scope of states that will be monitored for liens.
When the scope is "domestic", the policy will monitor liens for the state
of the domestic registration.
When the scope is "registered", the policy will monitor liens for the states
of all registrations.
enabledboolean required
Whether the monitoring policy is enabled.
last_run_atstring date-time nullable
When the notification policy was last executed.
next_run_onstring date nullable
When the notification policy is scheduled to run next.