diff --git a/src/models/GeneralScription.ts b/src/models/GeneralScription.ts
index 81fdd72..a2a30f5 100644
--- a/src/models/GeneralScription.ts
+++ b/src/models/GeneralScription.ts
@@ -6,6 +6,7 @@ import logger from 'logger/logger'
 
 @dbconn()
 @index({ from: 1, op: 1 }, { unique: false })
+@index({ from: 1, op: 1, data: 1 }, { unique: true })
 @index({ hash: 1 }, { unique: true })
 @index({ from: 1, blockTime: 1 }, { unique: false })
 @modelOptions({