{
  "manageEntity": {
    "action": "Update",
    "entityId": "957849040",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauebgigrgjaxjaj74bhnx7fnittgwluwdsumcnsjyoj7yw46xfpra\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":324870519},{\"type\":\"playlist\",\"playlist_id\":883608800},{\"type\":\"playlist\",\"playlist_id\":1220691484},{\"type\":\"playlist\",\"playlist_id\":1472527319}]}}}",
    "nonce": "0x32ca0e3dba9027c082a638fc779eafdec2bb7d8ffb3ec0d6113ee2c90ab2db50",
    "signature": "0xb6e9ef7cb99483a2b87434fc6caf81949e18f3afcba6d852f6d00002dd2be40577778923b877f75689bfac97064ba981e60d9feb84039d514dcec0be950446f21b",
    "signer": "0x473784A6Db124b95de277d9A2527561BA95e7133",
    "userId": "957849040"
  }
}