{
  "manageEntity": {
    "action": "Update",
    "entityId": "481107997",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x48bf926a532954f6cac30b5fd4e44442607a173d992870fdfb0a8bddf8d2a04a",
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    "signer": "0xdA4a90FB60d0D99ED3Eaeb8b2c26bBC1F5A3b981",
    "userId": "481107997"
  }
}