{
  "manageEntity": {
    "action": "Update",
    "entityId": "1640466",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabju3elhzub27ujjru7nlpsgc3uanpp7wpdclp2mk2g2y3jcpbhva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1746194365},{\"type\":\"playlist\",\"playlist_id\":467531450},{\"type\":\"playlist\",\"playlist_id\":1391989966},{\"type\":\"playlist\",\"playlist_id\":579214942}]}}}",
    "nonce": "0x2c02871e2c8f6fa3fde6ec1fc321f8bf30e5e1db6b38e4570f273ff59052ed0e",
    "signature": "0x7c9b0181fa41d8fa83d152a921fed7d5c4f3894a9a8460b76c6c2f6c20233a9e618391a27fe31e2fb96c0b82d8cbae6f0697aa6c507fd32b5901ae9b50244e291b",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}