{
  "manageEntity": {
    "action": "Update",
    "entityId": "890731398",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapzoxyjk4irtd5rbd5h2umrxbzbefh6co4y6owqe7vowu232a3s2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2021071560}]}}}",
    "nonce": "0x7980e1bcbee56a51cea418c5d8d4f51dd25e71cc687ebe35b88e1aaded1caa5c",
    "signature": "0x4f34ed5e8149f30a83a305e87fd402e55b0205d655e35e19bf0ed88d7ac81d2d3e7b6fe9e18bcdadfd2ef9de4fb50039e750c39efce55ed38b49d23f3afbdefa1c",
    "signer": "0x4cCa88d6Be48903eb588dD4B617cC0BAA2613d13",
    "userId": "890731398"
  }
}