int subscription_remove(const char *from, const char *to);
int subscription_notify(const char *author, uint64_t record);
struct blergref * subscription_list(const char *author, uint64_t offset, int *count, int direction);
int subscription_remove(const char *from, const char *to);
int subscription_notify(const char *author, uint64_t record);
struct blergref * subscription_list(const char *author, uint64_t offset, int *count, int direction);