diff --git a/lib/shared/messages/reaction-message-spec.js b/lib/shared/messages/reaction-message-spec.js
--- a/lib/shared/messages/reaction-message-spec.js
+++ b/lib/shared/messages/reaction-message-spec.js
@@ -48,6 +48,21 @@
     return messagePreviewText(validMessageInfo, threadInfo);
   },
 
+  rawMessageInfoFromServerDBRow(row: Object): RawReactionMessageInfo {
+    const content = JSON.parse(row.content);
+
+    return {
+      type: messageTypes.REACTION,
+      id: row.id.toString(),
+      threadID: row.threadID.toString(),
+      time: row.time,
+      creatorID: row.creatorID.toString(),
+      targetMessageID: content.targetMessageID,
+      reaction: content.reaction,
+      action: content.action,
+    };
+  },
+
   rawMessageInfoFromClientDB(
     clientDBMessageInfo: ClientDBMessageInfo,
   ): RawReactionMessageInfo {