UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fjyPai6D7u4UTf3U3iQsueZirBNuBNfPwRnN/RqquYI=' 
WHERE 
  key_id = '538546dd6e2add86888a5fec54195600b633837ec8b4fe09e50f4685e1669fd9' 
  AND (
    token = 'fjyPai6D7u4UTf3U3iQsueZirBNuBNfPwRnN/RqquYI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )