diff --git a/app/definitions/ISubscription.ts b/app/definitions/ISubscription.ts
index ec5cd9ade..5fae07c72 100644
--- a/app/definitions/ISubscription.ts
+++ b/app/definitions/ISubscription.ts
@@ -6,22 +6,88 @@ export enum SubscriptionType {
 	THREAD = 'thread'
 }
 
-export interface ISubscription {
-	id: string;
-	updatedAt: Date;
-	rid: string;
-	t: SubscriptionType;
+export interface IUserMessage {
+	_id: string;
+	username: string;
 	name: string;
-	fname: string;
-	prid?: string;
-	tmid?: string;
-	topic?: string;
-	teamMain?: boolean;
-	teamId?: string;
-	encrypted?: boolean;
-	visitor?: boolean;
-	autoTranslateLanguage?: boolean;
-	autoTranslate?: boolean;
-	observe?: Function;
-	usedCannedResponse: string;
 }
+
+// export interface ILastMessage {"_id":string,"rid":string,"tshow":boolean,"tmid":string,"msg":string,"ts":Date,"u":IUserMessage,"_updatedAt":Date,"urls":string[],"mentions":[],"channels":[],"md":[{"type":"PARAGRAPH","value":[{"type":"PLAIN_TEXT","value":"olaaa"}]}],"attachments":[],"reactions":[],"unread":false,"status":0}
+
+export interface ISubscription {
+	_id: string; // _id belongs watermelonDB
+	id: string; // id from server
+	f: boolean;
+	t: SubscriptionType;
+	ts: Date;
+	ls: Date;
+	name: string;
+	fname?: string;
+	rid: string; // the same as id
+	open: boolean;
+	alert: boolean;
+	roles: string[];
+	unread: number;
+	userMentions: number;
+	groupMentions: number;
+	tunread: string[];
+	tunreadUser: string[];
+	tunreadGroup: string[];
+	roomUpdatedAt: Date;
+	ro: boolean;
+	lastOpen: Date;
+	description?: string;
+	announcement?: string;
+	bannerClosed?: boolean;
+	topic?: string;
+	blocked: boolean;
+	blocker: boolean;
+	reactWhenReadOnly: boolean;
+	archived: boolean;
+	joinCodeRequired: boolean;
+	notifications: any;
+	muted: string[];
+	ignored: string[];
+	broadcast?: boolean;
+	prid: string;
+	draftMessage: string;
+	lastThreadSync: Date;
+	jitsiTimeout: number;
+	autoTranslate?: boolean;
+	autoTranslateLanguage?: boolean;
+	// lastMessage:
+	// messages
+	// threads
+	// threadMessages
+	// hideUnreadStatus
+	// sysMes
+	// uids
+	// usernames
+	// visitor
+	// departmentId
+	// servedBy
+	// livechatData
+	// tags
+	// E2EKey
+	// encrypted
+	// e2eKeyId
+	// avatarETag
+	// teamId
+	// teamMain
+}
+// updatedAt: Date;
+// rid: string;
+// t: SubscriptionType;
+// name: string;
+// fname: string;
+// prid?: string;
+// tmid?: string;
+// topic?: string;
+// teamMain?: boolean;
+// teamId?: string;
+// encrypted?: boolean;
+// visitor?: boolean;
+// autoTranslateLanguage?: boolean;
+// autoTranslate?: boolean;
+// observe?: Function;
+// usedCannedResponse: string;