UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8u+A1p/D7bKHq3zcrF6xI9L9LPFNWCYtHPTK43+EXb0=' 
WHERE 
  key_id = '8139cacd145423b787c89835a35a20b4b88a27f0274f1c5a9eac9435164f2e79' 
  AND (
    token = '8u+A1p/D7bKHq3zcrF6xI9L9LPFNWCYtHPTK43+EXb0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )