UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U1xBYpUZqvznnoUQCKf+AuExP45T8uRa2dCXsFjHhhc=' 
WHERE 
  key_id = '12fd1d92902d2cbff45b148dbb97139881690f04352a958e24f3123c8191cde7' 
  AND (
    token = 'U1xBYpUZqvznnoUQCKf+AuExP45T8uRa2dCXsFjHhhc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )