{
  "manageEntity": {
    "action": "Update",
    "entityId": "641557420",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratrkxbhideto7xd2gsteyxizt5mqxf5e6hljhqamr6dgcpmgqtb7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":553669516},{\"type\":\"playlist\",\"playlist_id\":1405681690},{\"type\":\"playlist\",\"playlist_id\":52901375}]}}}",
    "nonce": "0x3268f1afc3c0300b54868939d8797ebfed0554d7afccce71afd28a1d1a97b2d7",
    "signature": "0xcceca652e97e223cd77cb4e19fa07110f4ff8493314c92a16b87a81d55b1c98e54e4ec3e9c05ce39bd54ca74fbe2c32826f963cbb40e646525c895602d0001a81c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}