diff --git a/zomp/lib/otpr-zx/0.1.0/src/zx.erl b/zomp/lib/otpr-zx/0.1.0/src/zx.erl
index c9b8423..f98d445 100644
--- a/zomp/lib/otpr-zx/0.1.0/src/zx.erl
+++ b/zomp/lib/otpr-zx/0.1.0/src/zx.erl
@@ -51,12 +51,16 @@
 -type host()            :: {string() | inet:ip_address(), inet:port_number()}.
 -type key_id()          :: {realm(), key_name()}.
 -type key_name()        :: lower0_9().
--type key_data()        :: {key_id(), public | private, binary()}.
+-type key_data()        :: {ID      :: key_id(),
+                            Public  :: binary() | none,
+                            Private :: binary() | none}.
 -type user_id()         :: {realm(), user_name()}.
 -type user_name()       :: label().
+-type contact_info()    :: {Type :: string(), Data :: string()}.
 -type user_data()       :: {ID       :: user_id(),
                             RealName :: string(),
-                            Email    :: string()}.
+                            Contact  :: contact_info(),
+                            KeyData  :: [key_data()]}.
 -type lower0_9()        :: [$a..$z | $0..$9 | $_].
 -type label()           :: [$a..$z | $0..$9 | $_ | $- | $.].
 -type package_meta()    :: #{package_id := package_id(),