UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4v6vg+Gar+1kEkBG2n1qiNBq6uWmBy5nwSMpKlxQHMg=' 
WHERE 
  key_id = '8515184c0f449845faaaee25d24272e0410bf28b435bb9c391831be0a2a77652' 
  AND (
    token = '4v6vg+Gar+1kEkBG2n1qiNBq6uWmBy5nwSMpKlxQHMg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )