UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EhytG5dsda4Coun06lT2ZNfXjnZcW1UasFSu6M2CdIE=' 
WHERE 
  key_id = '4a8756975045e6450d1fc95e0d2bca439818d736f724f2086732a5e539587606' 
  AND (
    token = 'EhytG5dsda4Coun06lT2ZNfXjnZcW1UasFSu6M2CdIE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )