Create a new authorised entry for a given payload, and store both in the store. An entry will not be ingested if it is unauthorised; if a newer entry with the same path and subspace are present; or if a newer entry with a path that is a prefix of the given entry exists. See the Willow Data Model's Concepts for more information.

Additionally, if the new entry's path is a prefix of already-held older entries, those entries will be removed from the Store. See prefix pruning for more information.