diff --git a/src/models/NSInstanceModel.ts b/src/models/NSInstanceModel.ts
index 12ce977..5039cc5 100644
--- a/src/models/NSInstanceModel.ts
+++ b/src/models/NSInstanceModel.ts
@@ -49,6 +49,8 @@
     additionalParamsForNs: AdditionalParamForN;
     _id?: string;
     vcaStatus?: object;
+    startTime?: string;
+    'create-time'?: string;
 }
 
 /** Interface for Admin */
@@ -266,6 +268,7 @@
     operationParams?: OPERATIONPARAMS;
     'nsd-id': string;
     constituent: string[];
+    'create-time'?: string;
 }
 
 /** Interface for the operationparams */