sca_subscriptions mysql idDB1_INT subscriberDB1_STR aorDB1_STR eventDB1_INT expiresDB1_INT stateDB1_INT app_idxDB1_INT call_idDB1_STR from_tagDB1_STR to_tagDB1_STR record_routeDB1_BLOB notify_cseqDB1_INT subscribe_cseqDB1_INT server_idDB1_INT