{
  "manageEntity": {
    "action": "Update",
    "entityId": "627569721",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraiqvoprablmas3s6bom3ez6ang473uw7y6ntgjre2tmwflrrtcplq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":625022483}]}}}",
    "nonce": "0x4032960756de08c991f95620789180a536abc822096f6875ad51aef1c063a21d",
    "signature": "0x6b8deaeede449e441121871b01b0bdebcf773bfc2fd0a7131b34d02354b497a242433d8025403e2e33f8eaf6e70adfb26765f7baca9b87579523f31a35f3d4281b",
    "signer": "0xB867081b430bd2BFD6593Aa0298C9EC0D0622509",
    "userId": "627569721"
  }
}