UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C79iDpnVCgmflpnep50IcDlKlCNKykNSnGuayNTftks=' 
WHERE 
  key_id = '8f37d8d65b5287c79d30263902d5dcbc4966ce59680a5df045b0105a60c4eed2' 
  AND (
    token = 'C79iDpnVCgmflpnep50IcDlKlCNKykNSnGuayNTftks=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )