{
  "manageEntity": {
    "action": "Update",
    "entityId": "270321465",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xba06e45939e0974b9f705d284464d10313734060efd91393140ef6f13ed944ec",
    "signature": "0x98d1f659826864523c10f4d9102c8e9e92a2a4d814a6ef7085a649350f92b90a43cc6903310abba41f45e28c24fedc72ef6d6e15ee0abc00fc497e30178aba761c",
    "signer": "0xF707Ce56cfBBEd292263e81534ec0825e364a4Ee",
    "userId": "270321465"
  }
}