UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tU4Nlp58KmBwZsCxbbwgEYJFvxINsg3GlGFkNFcvij0=' 
WHERE 
  key_id = '18d6b3ff9103a08998ff757e77ed9a79e9c42684cd30209dad7047ccb979fed5' 
  AND (
    token = 'tU4Nlp58KmBwZsCxbbwgEYJFvxINsg3GlGFkNFcvij0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )