{"email1" "password1","email2" "password2","email3" "password3"}

{"email1" {"email1" "password1"},"email2" {"email2" "password2"},"email3" {"email3" "password3"}}

{"email1" ["email1" "password1"],"email2" ["email2" "password2"],"email3" ["email3" "password3"]}

(def m {"email1" "password1","email2" "password2","email3" "password3"})

(into {} (map (fn [[k v]] [k {k v}]) m))
;= {"email2" {"email2" "password2"}, "email1" {"email1" "password1"}, "email3" {"email3" "password3"}}