{
  "manageEntity": {
    "action": "Update",
    "entityId": "477934274",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasi4n5p3zqdkby4hluvu7katuqno2gcn5ccwumre47fgwme5vayda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1045320063},{\"type\":\"playlist\",\"playlist_id\":1207000386}]}}}",
    "nonce": "0x2b82aca06a5efada6490294cadb58d83d30a2a5dc6c255cf417a538fb500c9ac",
    "signature": "0xc8cb85897378e315159e0cebed78072149e644d0c80adba3fdf9fcf2a1fa4e8a101304176948ec406f141369d2467da4163347200f1c323bf436774bb4c4942f1b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}