{
  "manageEntity": {
    "action": "Update",
    "entityId": "298753539",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauxwahuvddxftpgbnhurybobwrh3otruwr5arvatvbm5kvs3wdadq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1834465480}]}}}",
    "nonce": "0x085554d213844b8aa5fc7879dd12b75b2605ce164c9ded5cf8a05638d34934e3",
    "signature": "0x94681a18714396de72a0d6961b38dad054b10f0071bb87682f7aa73f84abebd276c9f255486fac6b4c2b08087fcafa9a85f355becb50a3021acc9b783cbc38391c",
    "signer": "0xFdb6EDA334Ba879Ae23C0DeEC603A57d76564390",
    "userId": "298753539"
  }
}