UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6HCFxBxBctWNBiJoMUO095XuMSEvo1HV7e+jJKlOub0=' 
WHERE 
  key_id = '936d2c2f0e6766b80999942f4d4fd15cc6db2bf373c7d7c62a8f67f21cab945a' 
  AND (
    token = '6HCFxBxBctWNBiJoMUO095XuMSEvo1HV7e+jJKlOub0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )