description: A type containing zonal traffic subscription type: object required: - callbackReference - zoneId properties: clientCorrelator: $ref: '#/definitions/ClientCorrelator' callbackReference: $ref: '#/definitions/CallbackReference' zoneId: $ref: '#/definitions/ZoneId' interestRealm: description: Interest realms of access points within a zone (e.g. geographical area, a type of industry etc.). type: array items: $ref: '#/definitions/InterestRealm' userEventCriteria: description: List of user event values to generate notifications for (these apply to zone identifier or all interest realms within zone identifier specified). If this element is missing, a notification is requested to be generated for any change in user event. type: array items: $ref: '#/definitions/UserEventType' duration: $ref: '#/definitions/Duration' resourceURL: $ref: '#/definitions/ResourceURL'