{
  "manageEntity": {
    "action": "Update",
    "entityId": "162770660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralituiunh4gvtjspruwzscng7ssalwlzsueteqlmdo4leib2svtda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1380462390},{\"type\":\"playlist\",\"playlist_id\":83227478},{\"type\":\"playlist\",\"playlist_id\":1326008820}]}}}",
    "nonce": "0x35708e875f682c75b75dccda5c5d0547a5e97d1b2285c7f4564d94f8a7b2d7bf",
    "signature": "0x24525f6de3bf8e017fb4c2adee606c7773e6c44b081a8615f32cabe11fff0cb20fd786ab572e0f54abb6a79fc0702e6758c2b5e04340ccc1697bf8898ec7b59b1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}