sqlite 存储怎样存对象呢，报错1404

这是建表时：
'create table if not exists '+_this.tableName+'("chat_type" CHAR(40),"chat_id" CHAR(40),"type" INT(11),"time" INT(11),"user_info" CHAR(255),"content" BLOB)';

插入时：
"insert into "+_this.tableName+' values("422b17d4f5a827809bbcce38d6e683f6", "5e71da4b96dc89272833a0e4", 6,1584519755,"user_info",{"content":1})',

报错 ：

插入 failed: {"code":-1404,"message":"android.database.sqlite.SQLiteException: unrecognized token: \"{\" (code 1): , while compiling: insert into chat_messages values(\"422b17d4f5a827809bbcce38d6e683f6\", \"5e71da4b96dc89272833a0e4\", 6,1584519755,\"user_info\",{\"content\":1})