Updating a property can require an administrative action before the change can take effect. If so, the server will return 200 Success, and any actions are returned in the urn:unboundid:schemas:configuration:messages:2.0 section of the JSON response that represents the entire object that was created or modified.

Changing the jeProperty of a backend will result in the following:
"urn:unboundid:schemas:configuration:messages:2.0": {
  "requiredActions": [
    {
      "property": "baseContextPath",
      "type": "componentRestart",
      "synopsis": "In order for this modification to
		take effect, the component must be restarted,
		either by disabling and re-enabling it, or by
		restarting the server"
    },
    {
	"property": "id2childrenIndexEntryLimit",
	"type": "other",
	"synopsis": "If this limit is increased, then the
		contents of the backend must be exported to LDIF
		and re-imported to allow the new limit to be used
		for any id2children keys that had already hit the
		previous limit."
    }
  ]
}
...