{
  "manageEntity": {
    "action": "Update",
    "entityId": "568191419",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraf5livqnk7sourkdt4lkhajhbbz2scxescrhm5dcuzeopaubgxlia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":216659666},{\"type\":\"playlist\",\"playlist_id\":761353253},{\"type\":\"playlist\",\"playlist_id\":1462978837},{\"type\":\"playlist\",\"playlist_id\":1646560585},{\"type\":\"playlist\",\"playlist_id\":556699012},{\"type\":\"playlist\",\"playlist_id\":56353629}]}}}",
    "nonce": "0x45f02c2a09b906bd857dd1cc62a57a631ec8b60741875d150f269f8715fd74e7",
    "signature": "0xf2f450d385c05695aa0a269cdc580807bd9016a8b91af2cce8e83bab647a35cd198cbab03514e5824c8d9010f63f651aa61237e2aa208ccf7f516d97a282a7f51b",
    "signer": "0x984F58cD45410ADBceCA6A588E25A7D5E409d3AB",
    "userId": "568191419"
  }
}