{
  "manageEntity": {
    "action": "Update",
    "entityId": "842043513",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayjk6jfhthqhytg7yhidoqgjnrde7agbfo2bzg6wiwi6llwm2rcgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2143224101},{\"type\":\"playlist\",\"playlist_id\":1746798270}]}}}",
    "nonce": "0x74b560f1b9f9d66a07297979ea75ba519d5c7d0380fa496176185babd0868be4",
    "signature": "0xd599fa61a803c60ed497e76d215edb9e253428ca1a99f583d67c8d6b2301589b586a27199a4021538dc80826630da25a65593b347297f692db225c664330473c1b",
    "signer": "0xcCAe7e3D3B788aec9A4C39797101F323f7E87E55",
    "userId": "842043513"
  }
}