diff --git a/specification/eventgrid/data-plane/Microsoft.Storage/stable/2018-01-01/Storage.json b/specification/eventgrid/data-plane/Microsoft.Storage/stable/2018-01-01/Storage.json
index 0713fa701f7f..0caf38799d41 100644
--- a/specification/eventgrid/data-plane/Microsoft.Storage/stable/2018-01-01/Storage.json
+++ b/specification/eventgrid/data-plane/Microsoft.Storage/stable/2018-01-01/Storage.json
@@ -295,6 +295,100 @@
           "type": "string"
         }
       }
+    },
+    "StorageBlobTierChangedEventData": {
+      "description": "Schema of the Data property of an EventGridEvent for a Microsoft.Storage.BlobTierChanged event.",
+      "type": "object",
+      "properties": {
+        "api": {
+          "description": "The name of the API/operation that triggered this event.",
+          "type": "string"
+        },
+        "clientRequestId": {
+          "description": "A request id provided by the client of the storage API operation that triggered this event.",
+          "type": "string"
+        },
+        "requestId": {
+          "description": "The request id generated by the Storage service for the storage API operation that triggered this event.",
+          "type": "string"
+        },
+        "contentType": {
+          "description": "The content type of the blob. This is the same as what would be returned in the Content-Type header from the blob.",
+          "type": "string"
+        },
+        "contentLength": {
+          "description": "The size of the blob in bytes. This is the same as what would be returned in the Content-Length header from the blob.",
+          "type": "integer",
+          "format": "int64"
+        },
+        "blobType": {
+          "description": "The type of blob.",
+          "type": "string"
+        },
+        "url": {
+          "description": "The path to the blob.",
+          "type": "string"
+        },
+        "sequencer": {
+          "description": "An opaque string value representing the logical sequence of events for any particular blob name. Users can use standard string comparison to understand the relative sequence of two events on the same blob name.",
+          "type": "string"
+        },
+        "identity": {
+          "description": "The identity of the requester that triggered this event.",
+          "type": "string"
+        },
+        "storageDiagnostics": {
+          "description": "For service use only. Diagnostic data occasionally included by the Azure Storage service. This property should be ignored by event consumers.",
+          "type": "object"
+        }
+      }
+    },
+    "StorageAsyncOperationInitiatedEventData": {
+      "description": "Schema of the Data property of an EventGridEvent for a Microsoft.Storage.AsyncOperationInitiated event.",
+      "type": "object",
+      "properties": {
+        "api": {
+          "description": "The name of the API/operation that triggered this event.",
+          "type": "string"
+        },
+        "clientRequestId": {
+          "description": "A request id provided by the client of the storage API operation that triggered this event.",
+          "type": "string"
+        },
+        "requestId": {
+          "description": "The request id generated by the Storage service for the storage API operation that triggered this event.",
+          "type": "string"
+        },
+        "contentType": {
+          "description": "The content type of the blob. This is the same as what would be returned in the Content-Type header from the blob.",
+          "type": "string"
+        },
+        "contentLength": {
+          "description": "The size of the blob in bytes. This is the same as what would be returned in the Content-Length header from the blob.",
+          "type": "integer",
+          "format": "int64"
+        },
+        "blobType": {
+          "description": "The type of blob.",
+          "type": "string"
+        },
+        "url": {
+          "description": "The path to the blob.",
+          "type": "string"
+        },
+        "sequencer": {
+          "description": "An opaque string value representing the logical sequence of events for any particular blob name. Users can use standard string comparison to understand the relative sequence of two events on the same blob name.",
+          "type": "string"
+        },
+        "identity": {
+          "description": "The identity of the requester that triggered this event.",
+          "type": "string"
+        },
+        "storageDiagnostics": {
+          "description": "For service use only. Diagnostic data occasionally included by the Azure Storage service. This property should be ignored by event consumers.",
+          "type": "object"
+        }
+      }
     }
   }
 }