{
  "manageEntity": {
    "action": "Update",
    "entityId": "533673360",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x243f38f7feeb8d62ba8a66273df2de5ec8f1d35199261a8d25f55069213d84b0",
    "signature": "0xccfb3befbea9f1304637d670e07a6c773aaf5f3caa8c22df3d47c1056d50750a2e9171eab87f768e74bd202d564d709cb274e7dd13f0cdfc87932620ab5f45231b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}