UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DxRT091TH/8fQEr7XFKzz2Fa3bXmPWYXBlsu8wl7eiE=' 
WHERE 
  key_id = '521039f17b2adbd349c9e353047b8357b06585aa1abd7f9e71445d968723c960' 
  AND (
    token = 'DxRT091TH/8fQEr7XFKzz2Fa3bXmPWYXBlsu8wl7eiE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )