Method: CHECK_ACT_EVT_NO_SUBS
Method: CHECK_SUBS_SYS_ALIAS
Method: CHECK_SUBS_NO_ACT
Method: DELETE_SUBSCRIBER
Method: SET_SUBSCRIBER
Method: CHECK_SUBSCRIPTION_EXIST
Method: GET_EVENT_BY_RECEIVER
Method: GET_EVENT_SUBS
Method: GET_SUBSCRIPTION
Method: GET_SUBS_FOR_EVT_LIST
Method: CHECK_EVENT_SUBS_EXIST