UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zec2QpnwD3pwywClFjelxU0FNwTCh/1fKkHg35gq+fE=' 
WHERE 
  key_id = '257e75a9297e29d5a02518e9f12fe7e209d30dda45245d8ab964a04fe5f2275d' 
  AND (
    token = 'Zec2QpnwD3pwywClFjelxU0FNwTCh/1fKkHg35gq+fE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )