UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6TIqAhThwlzfMgqo9gdXNzY6rNnWXecyL+sOSJDDkCQ=' 
WHERE 
  key_id = '21dde0541aac03e6182a4f6660998d782379c388242d3b42ba182eb9f5731e50' 
  AND (
    token = '6TIqAhThwlzfMgqo9gdXNzY6rNnWXecyL+sOSJDDkCQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )