UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U+Dw2s6CnMhSrsVY8yTwCQjd/wSlc8y1QjWLHzOe+VA=' 
WHERE 
  key_id = '78a7bd680c4838aade9516f22bb37b5893d3c18ca635cc8b453a052854f97868' 
  AND (
    token = 'U+Dw2s6CnMhSrsVY8yTwCQjd/wSlc8y1QjWLHzOe+VA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )