{
  "manageEntity": {
    "action": "Update",
    "entityId": "937591339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierah2zikkjsylnxiam53jcfgodhyrmjh7c7fwn7hbwipl5syhomiora\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1312763542},{\"type\":\"playlist\",\"playlist_id\":1552757967},{\"type\":\"playlist\",\"playlist_id\":1944069140},{\"type\":\"playlist\",\"playlist_id\":481820134}]}}}",
    "nonce": "0xadefa23831b4a888f8dfc92a6fed1b407d5b09df37a197a42f9c72179b4c06bf",
    "signature": "0xcbcb122b1437eb9dbfe611c42df1389f08a52c5829d1bac8d593197eebd69b806d433a61b4aa65ddba709dc2ad473df4b19ed8b340c760ffe625231af87cdbde1c",
    "signer": "0x2B4524c69fAB42E4e548F5A7C30aF28b1433794D",
    "userId": "937591339"
  }
}