Added index on entry_id column to entry_states table.
Added index on user_id column to entry_states table.

It will speed up queries when a user retrieves all entries, including read ones.
Added index on read and user_id columns for entry_states table.

It will speed up queries when retrieving unread entries for a user.
Added an index on the published, created_at and id columns for the entries table.

All three columns are in descending order in the index.

It will speed up paged queries for entries.