{
  "manageEntity": {
    "action": "Update",
    "entityId": "820705315",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxa7bqpeoyukrbexcczvs2yoj2b4fewzzbnw7lo3b6r5pq2ct2o7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":328653074},{\"type\":\"playlist\",\"playlist_id\":163009564}]}}}",
    "nonce": "0x19817467b02c8d97073bdb2ebd641486caf64a690435a52f07f7378645771f3c",
    "signature": "0x7bb368082d216ee2d8d7977953ed9d4d7576e68e1e8a435e59c69781cb5e1f8421631445a689072fed46b46a2a3516e3ac9e35a19a80f4f09c4a624c65e7c43f1c",
    "signer": "0x3a6d9Afe6CDd1C057eD5C1A8d504E6F956675D35",
    "userId": "820705315"
  }
}