{
  "manageEntity": {
    "action": "Update",
    "entityId": "641557420",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafq4rif745qo7dbx6fmylblp4ygf5ziwqipaqhi3iwi6er3mwtelq\",\"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},{\"type\":\"playlist\",\"playlist_id\":1157811935}]}}}",
    "nonce": "0x6aeff0cff3e9d5c7d715e8a949ebf8b9cf39f52aeabfcfd9b44889c4eedc489a",
    "signature": "0x5ffb1736a4d1c7c3a2768c30c1df4fbb511167e2595be24cf2c2ee55395faaa763c63e9db50b66f6b4363b93476c47e4e1179f51363fc715028ac5e0e0a7d3a51c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}