{
  "manageEntity": {
    "action": "Update",
    "entityId": "325554867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2dhekrpo7lwvqj6vyxn3mrjqti3urc2egjnwpym4wvo5lutqkrla\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918542499},{\"type\":\"playlist\",\"playlist_id\":1723351475}]}}}",
    "nonce": "0x808412a211ee0bcc9d1f78661451fc6927165d6c7d635f6bca3e0d6955a356e5",
    "signature": "0x9827c53337ae4240a363d3df28a7374dee7c403aeae2c193906d9f6f40f73e8c0d41b6185f795f3d4bf5252b985b3346338c2166346d3a6b19b4a5bb6e3b12aa1b",
    "signer": "0x4b402dCD6745d20b1A6e12626A6E2b97c8652E37",
    "userId": "325554867"
  }
}