{
  "manageEntity": {
    "action": "Update",
    "entityId": "326767831",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierar2rmgg7p76igedj5l5gvbigfqanvv3mkh5mn2wu463nrvcvqqcua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1448541809},{\"type\":\"playlist\",\"playlist_id\":231573422},{\"type\":\"playlist\",\"playlist_id\":658416609},{\"type\":\"playlist\",\"playlist_id\":1691903345}]}}}",
    "nonce": "0x06dc3d69f745a3f7cca8290d655ee1c43c3041a2d0c7bb135b77268fc793abea",
    "signature": "0x0f420ca2064060d8f649cbff264e5c4d64c4edc0df62d809f14c1ffb97cbc2d141b1881a9bfc713d0f20c8c8d7e2e41e7e60f7f8a87f07c0f5fec7ca6c0109ed1c",
    "signer": "0xA21b45B80cA89EdC19365C5f9B50d82051294192",
    "userId": "326767831"
  }
}