{
  "manageEntity": {
    "action": "Update",
    "entityId": "895739959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraphmv5uom5hrtyvnju7pv5cmh22q3uied2lpyz3bo4mwyoa52c7qa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1393071726}]}}}",
    "nonce": "0x21636037b38739cf1139b66f50569b258c41d605b04056747e3c0a7ec400ed5f",
    "signature": "0xf88e49b56562d610f7e084b6608149558198bd7cf0773bbd7a6f3f98bf2fe1d139333b5abd6b3c2ffa41a9438470bb307624218b44540bc2f848af241e6fbd201c",
    "signer": "0x170ee1800376F784C32151bfD11db7Ea78a42315",
    "userId": "895739959"
  }
}