diff --git a/core/src/smartcontracts/isi/world.rs b/core/src/smartcontracts/isi/world.rs
index b5bdf1fff29..66338b22a34 100644
--- a/core/src/smartcontracts/isi/world.rs
+++ b/core/src/smartcontracts/isi/world.rs
@@ -107,13 +107,13 @@ pub mod isi {
         #[metrics(+"register_role")]
         fn execute(
             self,
-            authority: <Account as Identifiable>::Id,
+            _authority: <Account as Identifiable>::Id,
             wsv: &WorldStateView<W>,
         ) -> Result<(), Self::Error> {
-            let role_id = role.object.id;
+            let role_id = self.object.id.clone();
 
             wsv.modify_world(|world| {
-                world.roles.insert(role_id.clone(), role);
+                world.roles.insert(role_id.clone(), self.object);
                 Ok(RoleEvent::Created(role_id).into())
             })
         }
diff --git a/data_model/src/events/data/events.rs b/data_model/src/events/data/events.rs
index 1596c74ce41..dc0a3ac7e23 100644
--- a/data_model/src/events/data/events.rs
+++ b/data_model/src/events/data/events.rs
@@ -189,7 +189,7 @@ pub enum WorldEvent {
     Peer(PeerEvent),
 
     #[cfg(feature = "roles")]
-    Role(Role),
+    Role(RoleEvent),
 }
 
 /// Event
@@ -203,7 +203,7 @@ pub enum Event {
     Peer(PeerEvent),
     /// Role event
     #[cfg(feature = "roles")]
-    Role(Role),
+    Role(RoleEvent),
     /// Account event
     Account(AccountEvent),
     /// Asset definition event
diff --git a/data_model/src/events/data/filters.rs b/data_model/src/events/data/filters.rs
index 5851b34a70f..8bbd5fd84a9 100644
--- a/data_model/src/events/data/filters.rs
+++ b/data_model/src/events/data/filters.rs
@@ -189,20 +189,15 @@ impl Filter for EntityFilter {
 
     fn filter(&self, event: &Event) -> bool {
         match (self, event) {
-            (&Self::ByDomain(ref filter_opt), &Event::Domain(ref domain)) => {
-                filter_opt.filter(domain)
-            }
-            (&Self::ByPeer(ref filter_opt), &Event::Peer(ref peer)) => filter_opt.filter(peer),
+            (Self::ByDomain(filter_opt), Event::Domain(domain)) => filter_opt.filter(domain),
+            (Self::ByPeer(filter_opt), Event::Peer(peer)) => filter_opt.filter(peer),
             #[cfg(feature = "roles")]
-            (&Self::ByRole(ref filter_opt), &Event::Role(ref role)) => filter_opt.filter(role),
-            (&Self::ByAccount(ref filter_opt), &Event::Account(ref account)) => {
-                filter_opt.filter(account)
+            (Self::ByRole(filter_opt), Event::Role(role)) => filter_opt.filter(role),
+            (Self::ByAccount(filter_opt), Event::Account(account)) => filter_opt.filter(account),
+            (Self::ByAssetDefinition(filter_opt), Event::AssetDefinition(asset_definition)) => {
+                filter_opt.filter(asset_definition)
             }
-            (
-                &Self::ByAssetDefinition(ref filter_opt),
-                &Event::AssetDefinition(ref asset_definition),
-            ) => filter_opt.filter(asset_definition),
-            (&Self::ByAsset(ref filter_opt), &Event::Asset(ref asset)) => filter_opt.filter(asset),
+            (Self::ByAsset(filter_opt), Event::Asset(asset)) => filter_opt.filter(asset),
             _ => false,
         }
     }
diff --git a/data_model/src/events/data/mod.rs b/data_model/src/events/data/mod.rs
index 696f23a1ee9..1f79cdc092d 100644
--- a/data_model/src/events/data/mod.rs
+++ b/data_model/src/events/data/mod.rs
@@ -20,7 +20,7 @@ mod filters;
 /// Exports common structs and enums from this module.
 pub mod prelude {
     #[cfg(feature = "roles")]
-    pub use super::RoleEvent;
+    pub use super::events::RoleEvent;
     pub use super::{
         events::{
             AccountEvent, AssetDefinitionEvent, AssetEvent, DomainEvent, Event as DataEvent,