UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'db51RAHmoNbQvCuhWJ6Pc6lzLElMppCc/OulIcalu0k=' 
WHERE 
  key_id = 'e1afe5cc4ffff746c2a23238905ac3a4e516eaf856c8e5d4b1e7645d7fb3f8a9' 
  AND (
    token = 'db51RAHmoNbQvCuhWJ6Pc6lzLElMppCc/OulIcalu0k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )