UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '7jgYH/30DeNiDPna1oH4NiPB8vod3cpMuzzPGa+d2ME=' 
WHERE 
  key_id = '51847f971e0d4a7edc639498758d183b42dfb7f142c3441a93bfc56a677ff2b8' 
  AND (
    token = '7jgYH/30DeNiDPna1oH4NiPB8vod3cpMuzzPGa+d2ME=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )