{
  "manageEntity": {
    "action": "Update",
    "entityId": "402526451",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraz5da7kf7c54jy3yeoabbeqfcuhaopgt5gyxkxwhzjb6obclqyckq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":979342421}]}}}",
    "nonce": "0xd76cfffcb1791897fa9c9f14da2f0827717e070fd08d15d25f572ee10649bd7b",
    "signature": "0xd6fd396b83ff639d3b00e8cd7a1ecd845a1e1f48ef2e6eea64566d5cf2f30a37577873a26d91c88839fc66e3af46427c45f6097801a0cf3ec0a47b996bba5ec31b",
    "signer": "0x3268c7e938FD368Bd958d44b728BD13025e27d63",
    "userId": "402526451"
  }
}