{
  "manageEntity": {
    "action": "Update",
    "entityId": "904596307",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe45ea5c4f85fd7ff705ffb3e1f8b3b466d454d844f7116f9c1affb31b1250dd2",
    "signature": "0x1ef37e3b750a0f9afc79377cb693523fbfb284fd501a2e118e19cb0ecc7ae50672334c36f0e7afd6dc89c003cc6aa1f3383b1a1b28f86d220d7651d7c85c5a951b",
    "signer": "0x0B175B80B1B582Ed897De31c530667C0e8f46d33",
    "userId": "904596307"
  }
}