{
  "manageEntity": {
    "action": "Update",
    "entityId": "545537105",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieran67kbx662wnh2hecupqpzxg6ftolsc4byhsovpgk2h5ytkxzy4ja\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1759831332}]}}}",
    "nonce": "0xc8ab54e0a6806e11860e5588fdb8d5393bb7b04a68c0f976cbdfdc82dcf30733",
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    "signer": "0xB4a54F9B2a7959bD50C623E17c29991fa049790a",
    "userId": "545537105"
  }
}