UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ae2m7e/OaQyaivcnREYbpKWsCfgmocchx8YqlnlYktM=' 
WHERE 
  key_id = '40d71bed2cfde1f34ad2e4d372b74f237ae0496a1c2f96c923c716f4442eb2c1' 
  AND (
    token = 'ae2m7e/OaQyaivcnREYbpKWsCfgmocchx8YqlnlYktM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )