{
  "manageEntity": {
    "action": "Update",
    "entityId": "310188863",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierak6z7brwhw7rmizstm7ifovigd3phrrjfuogxael6iv7mg64wj3rq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":484873219}]}}}",
    "nonce": "0x65292793783ee3659ee13ab85f0eb7c63312eebd815bbd6e420fe3c616b97074",
    "signature": "0xeb582983ced267fdb8478f8d1d9f03da5239be57beaf38ed9febd263783514074aed113f003caf433041c86f37a0853d28d454b12b6d9f9bef405e5a66c994701b",
    "signer": "0x7CED204471059c0d1eD2432322D405F8EA79D93c",
    "userId": "310188863"
  }
}