{
  "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": "0x34482fd96aaac920c420f9a024dd626d8401192755af8e7e6074f4b442fb70c4",
    "signature": "0x6c7f513af42b95eae96c33d496580036398d6ff7c8bda5577129a2de2460a8625d8d7083713f56e1c257228dcf30626df44a6870e0f8525d5a7c1b3309d81ce71b",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}