UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6xbnlZxlTzTVkldRKhleUf+APqK+3skaQH4ycfnROjg=' 
WHERE 
  key_id = '621414083c229389d9798144b51170f45297d9907cf3b9ea9098fe4b5afca30b' 
  AND (
    token = '6xbnlZxlTzTVkldRKhleUf+APqK+3skaQH4ycfnROjg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )