Yes we have standard profile which is "proximity" profile can control the access to gate. We can also use custom profile but it is somewhat complex. It would be better to use the standard profile.
After pairing takes place the bonded device address will be stored in the whitelist then psoc4 BLE will advertise to the devices which are in whitelist only. Please refer the code example "BLE_4.2_DataLength_Security-Privacy" in the PSoC Creator for more details on Security Privacy settings.