UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bXCxq4h9bkcAsfxEdVVwcUruuYjntMk16FljvFvQ1fk=' 
WHERE 
  key_id = '508d84ef02e2f9497eae2e9200606c3b13b77e1f6b357e75b37671ef5f81694d' 
  AND (
    token = 'bXCxq4h9bkcAsfxEdVVwcUruuYjntMk16FljvFvQ1fk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )