diff --git a/Cargo.toml b/Cargo.toml
index b2fc27a..eda20f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,8 +14,8 @@ publish = false
 [dependencies]
 anyhow = "1"
 #ceramic-event = { git = "https://github.com/ceramicnetwork/rust-ceramic", branch = "main" }
-#ceramic-event = { path = "/Users/dbrowning/code/3box/rust-ceramic/event", default-features = false }
-ceramic-event = { git = "https://github.com/ceramicnetwork/rust-ceramic", branch = "feat/wasi" }
+ceramic-event = { path = "/Users/dbrowning/code/3box/rust-ceramic/event", default-features = false }
+#ceramic-event = { git = "https://github.com/ceramicnetwork/rust-ceramic", branch = "feat/wasi" }
 json-patch = { version = "1.2.0", features = ["diff"] }
 reqwest = { version = "0.11.14", features = ["json"], optional = true }
 schemars = "0.8.12"
diff --git a/src/api.rs b/src/api.rs
index a2db02b..cacd5b4 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -1,8 +1,5 @@
 use crate::query::FilterQuery;
-use ceramic_event::{
-    Base64String, Base64UrlString, Jws, MultiBase32String, MultiBase36String, StreamId,
-    StreamIdType,
-};
+use ceramic_event::{Base64String, Base64UrlString, Jws, MultiBase32String, MultiBase36String, StreamId, StreamIdType};
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 
@@ -25,7 +22,7 @@ pub struct BlockData<T: Serialize> {
     /// Header for block
     pub header: BlockHeader,
     /// Data for block
-    #[serde(skip_serializing_if = "Option::is_none")]
+    //#[serde(skip_serializing_if = "Option::is_none")]
     pub data: Option<T>,
     /// Signature for block
     #[serde(skip_serializing_if = "Option::is_none")]
diff --git a/src/lib.rs b/src/lib.rs
index 20078c2..3c8f98a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,10 +8,7 @@ pub mod api;
 mod model_definition;
 mod query;
 
-use ceramic_event::{
-    Base64String, Cid, DagCborEncoded, EventArgs, Jws, MultiBase36String, Signer, StreamId,
-    StreamIdType,
-};
+use ceramic_event::{Base64String, Cid, DeterministicInitEvent, EventArgs, Jws, MultiBase36String, Signer, StreamId, StreamIdType};
 use serde::Serialize;
 use std::str::FromStr;
 
@@ -147,12 +144,12 @@ impl<S: Signer> CeramicHttpClient<S> {
     pub async fn create_single_instance_request(
         &self,
         model_id: &StreamId,
-    ) -> anyhow::Result<api::CreateRequest<DagCborEncoded>> {
+    ) -> anyhow::Result<api::CreateRequest<DeterministicInitEvent>> {
         if !model_id.is_model() {
             anyhow::bail!("StreamId was not a model");
         }
         let args = EventArgs::new_with_parent(&self.signer, model_id);
-        let commit = args.init()?;
+        let _commit = args.init()?;
         let controllers: Vec<_> = args.controllers().map(|c| c.id.clone()).collect();
         let model = Base64String::from(model_id.to_vec()?);
         Ok(api::CreateRequest {
@@ -165,7 +162,7 @@ impl<S: Signer> CeramicHttpClient<S> {
                 },
                 linked_block: None,
                 jws: None,
-                data: Some(commit.encoded),
+                data: None,
                 cacao_block: None,
             },
         })
@@ -630,6 +627,11 @@ pub mod tests {
         cli.create_model(&model).await.unwrap()
     }
 
+    pub async fn create_single_model(cli: &CeramicRemoteHttpClient<JwkSigner>) -> StreamId {
+        let model = ModelDefinition::new::<Ball>("TestBall", ModelAccountRelation::Single).unwrap();
+        cli.create_model(&model).await.unwrap()
+    }
+
     #[tokio::test]
     async fn should_create_model() {
         let ceramic = CeramicRemoteHttpClient::new(signer().await, ceramic_url());
@@ -637,12 +639,38 @@ pub mod tests {
         ceramic.create_model(&model).await.unwrap();
     }
 
-    // #[tokio::test]
-    // async fn should_create_single_instance() {
-    //     let ceramic = CeramicRemoteHttpClient::new(did(), &did_private_key(), ceramic_url());
-    //     let model = create_model(&ceramic).await;
-    //     ceramic.create_single_instance(&model).await.unwrap();
-    // }
+    #[tokio::test]
+    async fn should_create_single_instance() {
+        let ceramic = CeramicRemoteHttpClient::new(signer().await, ceramic_url());
+        let model = create_single_model(&ceramic).await;
+        ceramic.create_single_instance(&model).await.unwrap();
+    }
+
+    #[tokio::test]
+    async fn should_create_and_update_single_instance() {
+        let ceramic = CeramicRemoteHttpClient::new(signer().await, ceramic_url());
+        let model = create_single_model(&ceramic).await;
+        let stream_id = ceramic.create_single_instance(&model).await.unwrap();
+
+        tokio::time::sleep(Duration::from_secs(1)).await;
+
+        let patch = json_patch::Patch(vec![json_patch::PatchOperation::Replace(
+            ReplaceOperation {
+                path: "/".to_string(),
+                value: serde_json::json!({
+                    "creator": ceramic.client().signer().id().id.clone(),
+                    "radius": 1,
+                    "red": 2,
+                    "green": 3,
+                    "blue": 4,
+                }),
+            },
+        )]);
+        let post_resp = ceramic.update(&model, &stream_id, patch).await.unwrap();
+        assert_eq!(post_resp.stream_id, stream_id);
+        let post_resp: Ball = serde_json::from_value(post_resp.state.unwrap().content).unwrap();
+        assert_eq!(post_resp.red, 5);
+    }
 
     #[tokio::test]
     async fn should_create_and_update_list() {