{
  "manageEntity": {
    "action": "Update",
    "entityId": "183164691",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20102380d12e3dea11f3344b8da0570555877019005367960346df61a314a8df",
    "signature": "0xf73b47bb7cd4b51acd3cef4bb07184f868d108a158bff6ea0849a391ccd5aaec29be3a487b487a20438fb6ee0a6648126490dc109b663a244aa1cb75a27472491c",
    "signer": "0x1A60BA2cBA7aFf9b330C25342187Ae9eA906198e",
    "userId": "183164691"
  }
}