UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W4MWpGMZ0KIutthKXSk2TN6tX9w4C4eigMBlvjIST0A=' 
WHERE 
  key_id = '25ccc6d4a5426e0204e6aca7ffcced8b7a7e7270a354d11700752c7f0ef04288' 
  AND (
    token = 'W4MWpGMZ0KIutthKXSk2TN6tX9w4C4eigMBlvjIST0A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )