{
  "manageEntity": {
    "action": "Update",
    "entityId": "427798224",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakf73i3xamaqeq6ucjklyx6eagfa7okpwtpx7edjrvgjgqmxtajwq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":468408998},{\"type\":\"playlist\",\"playlist_id\":1547816515},{\"type\":\"playlist\",\"playlist_id\":477198350},{\"type\":\"playlist\",\"playlist_id\":1533533383},{\"type\":\"playlist\",\"playlist_id\":1873293554}]}}}",
    "nonce": "0xd812e2c788fe3b3f3d93fb45781953e0033746781ff3d3e56925698d1af18ecb",
    "signature": "0x384bfd30d909e6f1241b204dd4fb0ce44425664fa5f93a26f08118a8c342cdd8497e18d77c438ac587242a9d8990fc76889f70d7359210990d94ebffa4fc92481c",
    "signer": "0x8A43ca6C48A13586f2a6ABc3118B2ce7D743c901",
    "userId": "427798224"
  }
}