{
  "manageEntity": {
    "action": "Update",
    "entityId": "354908",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajyilsfxq7qjcubqwjjy4vlpikrxujivjj4c32fpzo7zljwspjoxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1288494577},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":66758},{\"type\":\"playlist\",\"playlist_id\":139335},{\"type\":\"playlist\",\"playlist_id\":140294347},{\"type\":\"playlist\",\"playlist_id\":1428}]}}}",
    "nonce": "0x56a8a9730df09cfc703488d78a7e6b76c459b4ee7f3ce87d52b67bcaf2f368fe",
    "signature": "0xfa37a94b0fd6539a0d7684137391815fc6c5b7ea6a4d1f26d750fecd7ba28c7a414a60838db9aa4d0bdcdda1409634b050c88fb2612414f94ce05d7e3d7698c21c",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}