{
  "manageEntity": {
    "action": "Update",
    "entityId": "477934274",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasi4n5p3zqdkby4hluvu7katuqno2gcn5ccwumre47fgwme5vayda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1045320063},{\"type\":\"playlist\",\"playlist_id\":1207000386}]}}}",
    "nonce": "0x3387319fe6609f9841dc62ce2539d705afd66ae44a73114f8e7bf2a756d29c36",
    "signature": "0x1110fbc5e563e125e6464d012d5f0b493774963c3dde4fef48f4adb12802a19703fb257b3911dd0b3093c58398d772afad2987ed21ef1e7d0939b4f93df55b5e1b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}