{
  "manageEntity": {
    "action": "Update",
    "entityId": "52419076",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x88241eeea45227203a07ed7d8bef2e2806c3964d7dec8c75117077fcefda1ffb",
    "signature": "0x9e4d6b28fb669d178dcca97623b716a510a6c3465e2c0bd9161bd8d75d95df3b159a86cbd6941fa9419b14adc57cd3bf380045503306f139654a2319d7bb30cc1c",
    "signer": "0x725DaA30bA35409b848880A9951dc3c8DBA2D02C",
    "userId": "52419076"
  }
}