UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cRWmzT/iRYBx0lguvW5XsLJsr6d+oy+cTHauUo/WMR0=' 
WHERE 
  key_id = '5a21eac84449751b975b9c3f43480c8ced82cf325df7d7cab74f9490997e38e5' 
  AND (
    token = 'cRWmzT/iRYBx0lguvW5XsLJsr6d+oy+cTHauUo/WMR0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )