UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E6hGNxb1kOhReVq9GY3r5CN20S3X6O5RJk3vsErcJZw=' 
WHERE 
  key_id = 'a81f027365e34f7c5b0c71b6de524426d989b4287c9423f00b4ca2380a991298' 
  AND (
    token = 'E6hGNxb1kOhReVq9GY3r5CN20S3X6O5RJk3vsErcJZw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )