{
  "manageEntity": {
    "action": "Update",
    "entityId": "368251394",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera53ejftgvtoacgayw2hdp6r5fs3ejmjo7ffqmkilv3suoog2wd32q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1934375503},{\"type\":\"playlist\",\"playlist_id\":1701063367}]}}}",
    "nonce": "0xe3a4c01837edd76b312c663bdd8c9f5e3de72a1412b670afe809e22355289001",
    "signature": "0x5d9c0d1293d35082f7898d8186924f662ac66d99bd3bd74f8f3cd55091f8ee00677c976c9a3b294da3b56b3117ac982523f93b2c25730983d61d9711078b49d71c",
    "signer": "0xD16DE964b94Db4bDe46DDe6B86F2e9193b7A89dA",
    "userId": "368251394"
  }
}