{
  "manageEntity": {
    "action": "Update",
    "entityId": "641557420",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracmmhyrs45bah6auq26il2hfu22d2gt77ixqamvdyrl5wqndnm5xa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":553669516},{\"type\":\"playlist\",\"playlist_id\":1405681690}]}}}",
    "nonce": "0xf472b23454590c3fdbedb432ab0e4cb333d8718d459a02e49add816207f499a6",
    "signature": "0xaf09f03943d4feec8ddf3e897c8ce80544c58861945d4376e929077e85346ec0775d1ff6a22bbef485a576379f93cae7f3bef0f11b099412b904056f5550867c1b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}