UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nDKuuqni7MPVvi6FcISm0n34H1vy3cAimfudJJNxGUQ=' 
WHERE 
  key_id = 'bdb9412346a3f69d788688b0b54374b6df20465f923674982a3fe647534710d3' 
  AND (
    token = 'nDKuuqni7MPVvi6FcISm0n34H1vy3cAimfudJJNxGUQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )