UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3tLXhYcm5G4YHFj8W8k7QrfizxUWBquk7i1JWCxgNSI=' 
WHERE 
  key_id = '3e8cbbca530657c7d16fa5a2ede4ec9c918ce00c1bc31ad4a5e5bc62cfd18ce2' 
  AND (
    token = '3tLXhYcm5G4YHFj8W8k7QrfizxUWBquk7i1JWCxgNSI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )