{
  "manageEntity": {
    "action": "Update",
    "entityId": "431497296",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0e7faf776d9368821c4edfd352ad8f52cbba4abc0480ab1a90b52a068039a469",
    "signature": "0xeb992555ff221b218c3c9faa6095ce39e1f5a14acc16410e9a9ad7488514897601ed8394f441a101f850db56e103ce2088b09e241c3d12862e7b35c8e8a132841b",
    "signer": "0x2851e27BfeFEF74204921cD042C75FcBab0bF382",
    "userId": "431497296"
  }
}