This read-create Unsigned32, in units of seconds, specifies how long the entity should wait between the row becoming active and the change request actually being queued for execution, and on a read it instead reports the time remaining before queuing occurs. Admins use it to schedule a configuration change for a short delay after activation, for example to allow time to cancel a mistaken request before it runs. Setting this to 30 and then activating the row would give the admin a 30-second window to abort before the change is queued.