UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6VhzVlR3QAJr28pq6WygdMHrle5yAA6o2X1EkVzleYA=' 
WHERE 
  key_id = '8b51acc3d1f2e0d6ef0d1186a6cadd76195e4ac4903a9ff193f4fb63c97928e8' 
  AND (
    token = '6VhzVlR3QAJr28pq6WygdMHrle5yAA6o2X1EkVzleYA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )