{ "self": "urn:mrn:signalk:uuid:c0d79334-4e25-4245-8892-54e8ccc8021d", "vessels": { "urn:mrn:signalk:uuid:c0d79334-4e25-4245-8892-54e8ccc8021d": { "uuid": "urn:mrn:signalk:uuid:c0d79334-4e25-4245-8892-54e8ccc8021d", "notifications": { "navigation": { "position": { "value": { "message": "Position is more than 5 minutes old", "state": "alert", "method": [ "visual" ] }, "timestamp": "2014-04-10T08:33:53Z", "$source": "a.suitable.path" } } } } }, "version": "1.0.0" }