diff --git a/Cargo.lock b/Cargo.lock
index cea2fc0..ed306fa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -605,9 +605,9 @@ dependencies = [
 
 [[package]]
 name = "cmake"
-version = "0.1.57"
+version = "0.1.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75443c44cd6b379beb8c5b45d85d0773baf31cce901fe7bb252f4eff3008ef7d"
+checksum = "c0f78a02292a74a88ac736019ab962ece0bc380e3f977bf72e376c5d78ff0678"
 dependencies = [
  "cc",
 ]
@@ -3876,7 +3876,7 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 [[package]]
 name = "ttp-core"
 version = "0.1.0"
-source = "git+https://github.com/Tensamin/TTP.git#c127d196082401f37b51ca5417b341ecbdb74318"
+source = "git+https://github.com/Tensamin/TTP.git#9c0ed7a5b6c8735e4b674d4503bd7b936ee3656b"
 dependencies = [
  "base64",
  "byteorder",
@@ -3888,7 +3888,7 @@ dependencies = [
 [[package]]
 name = "ttp-native"
 version = "0.1.0"
-source = "git+https://github.com/Tensamin/TTP.git#c127d196082401f37b51ca5417b341ecbdb74318"
+source = "git+https://github.com/Tensamin/TTP.git#9c0ed7a5b6c8735e4b674d4503bd7b936ee3656b"
 dependencies = [
  "quinn",
  "rustls",
@@ -3942,9 +3942,9 @@ checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
 
 [[package]]
 name = "unicode-segmentation"
-version = "1.13.1"
+version = "1.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da36089a805484bcccfffe0739803392c8298778a2d2f09febf76fac5ad9025b"
+checksum = "9629274872b2bfaf8d66f5f15725007f635594914870f65218920345aa11aa8c"
 
 [[package]]
 name = "unicode-truncate"
diff --git a/src/omikron/omikron_connection.rs b/src/omikron/omikron_connection.rs
index 1340ca3..83b9dcf 100755
--- a/src/omikron/omikron_connection.rs
+++ b/src/omikron/omikron_connection.rs
@@ -589,21 +589,43 @@ impl OmikronConnection {
         if cv.is_type(CommunicationType::get_chats) {
             let user_id = cv.get_sender();
             let users = chats_util::get_users(user_id as i64);
+            let mut user_array = Vec::new();
+            for user in users {
+                let mut container = Vec::new();
+                container.push((DataTypes::user_id, DataValue::Number(user.user_id)));
+                if let Some(name) = user.user_name {
+                    container.push((DataTypes::username, DataValue::Str(name)));
+                }
+                if let Some(ts) = user.last_message_at {
+                    container.push((DataTypes::last_message_at, DataValue::Number(ts)));
+                }
+                user_array.push(DataValue::Container(container));
+            }
             let resp = CommunicationValue::new(CommunicationType::get_chats)
                 .with_id(cv.get_id())
                 .with_receiver(user_id)
-                .add_data(DataTypes::user_ids, DataValue::Str(users.dump()));
+                .add_data(DataTypes::user_ids, DataValue::Array(user_array));
             self.send_message(&resp).await;
             return;
         }
 
         if cv.is_type(CommunicationType::add_conversation) {
             let user_id = cv.get_sender();
-            let other_id = cv
-                .get_data(DataTypes::chat_partner_id)
-                .as_number()
-                .unwrap_or(0);
+            let other_id = match cv.get_data(DataTypes::chat_partner_id).as_number() {
+                Some(n) => n as i64,
+                None => cv
+                    .get_data(DataTypes::chat_partner_id)
+                    .as_str()
+                    .unwrap_or("0")
+                    .parse()
+                    .unwrap_or(0),
+            };
             let mut contact = get_user(user_id as i64, other_id).unwrap_or(Contact::new(other_id));
+
+            if let Some(name) = cv.get_data(DataTypes::chat_partner_name).as_str() {
+                contact.user_name = Some(name.to_string());
+            }
+
             contact.set_last_message_at(
                 SystemTime::now()
                     .duration_since(UNIX_EPOCH)
diff --git a/src/util/chats_util.rs b/src/util/chats_util.rs
index 00d1858..19598ef 100644
--- a/src/util/chats_util.rs
+++ b/src/util/chats_util.rs
@@ -1,6 +1,5 @@
 use crate::users::contact::Contact;
 use crate::util::file_util::get_directory;
-use json::{JsonValue, array};
 use rusqlite::{Connection, params};
 
 fn db_path() -> String {
@@ -87,8 +86,8 @@ pub fn get_user(storage_owner: i64, user_id: i64) -> Option<Contact> {
     }
 }
 
-pub fn get_users(storage_owner: i64) -> JsonValue {
-    let mut contacts_out = array![];
+pub fn get_users(storage_owner: i64) -> Vec<Contact> {
+    let mut contacts_out = Vec::new();
 
     let conn = match open_db() {
         Ok(c) => c,
@@ -126,7 +125,7 @@ pub fn get_users(storage_owner: i64) -> JsonValue {
 
     for row in rows {
         if let Ok(contact) = row {
-            let _ = contacts_out.push(contact.to_json());
+            contacts_out.push(contact);
         }
     }