diff --git a/src/modules/reading-event/reading-event.dto.ts b/src/modules/reading-event/reading-event.dto.ts
index 0360eca..01963ae 100644
--- a/src/modules/reading-event/reading-event.dto.ts
+++ b/src/modules/reading-event/reading-event.dto.ts
@@ -22,7 +22,7 @@ export class ReadingEventUploadItemDto {
 
   @IsInt()
   @Min(0)
-  @Max(300)
+  @Max(3600)
   activeSecondsDelta!: number;
 
   @IsInt()
@@ -41,6 +41,10 @@ export class ReadingEventUploadItemDto {
   @IsOptional()
   @IsInt()
   clientTimezoneOffsetMinutes?: number;
+
+  @IsOptional()
+  @IsString()
+  knowledgeBaseId?: string;
 }
 
 export class BatchUploadReadingEventsDto {