UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'HmjPj1KhR2YN74xvwfFFMYHSnXHrcc+hlh3zzILO+XE=' 
WHERE 
  key_id = '6a7274def79845c50b5f7b96ebd561d6511c7a13f8975963366163f4fdd8204c' 
  AND (
    token = 'HmjPj1KhR2YN74xvwfFFMYHSnXHrcc+hlh3zzILO+XE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )