UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zhdUe4NvCm+NQkuHMYpSUzwlWDUjx+vzRCb7KyWaqjg=' 
WHERE 
  key_id = 'a27be29cc6e2fe69b20f3abf76533ad26f04d7cbba6d7baef3cb02278bd4629e' 
  AND (
    token = 'zhdUe4NvCm+NQkuHMYpSUzwlWDUjx+vzRCb7KyWaqjg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )