UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YtNh2utFenyav1IzIQCzbehcgY206NRch5Pazvj1Exk=' 
WHERE 
  key_id = '4d4dad6083f01dd468bd50bda8a6934e23208d13f0fd27c98713ac129d281c2d' 
  AND (
    token = 'YtNh2utFenyav1IzIQCzbehcgY206NRch5Pazvj1Exk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )