{
  "manageEntity": {
    "action": "Update",
    "entityId": "64132339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapetaayzounsju2m3enpiirbaazzhkooffq32nammzhq4xpj5nmoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1893248228}]}}}",
    "nonce": "0x98fdd3de43f9762761bcc9ec8a59589f418f627b82b7257f75cde26a36157bb4",
    "signature": "0x5fc5b428c81885e64ef97c6aebde27bca438374a681b8cfb9714a3de53edad3a376b0e646e40af6c6c4c8dff333aba4632cbf1b9cfea1c6e4b5641f3ec04d01d1c",
    "signer": "0x15D66F842f6827B89769bc8C99C363980f52a5ea",
    "userId": "64132339"
  }
}