UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e5LaAKKHvVNmFydGcls8nUaUy8bgeyi1SvGZAFrLvXM=' 
WHERE 
  key_id = '1f847f36359dc6eceb8df8e92ad0139ed9a19022e71fc0c2afa526ff5c5020b1' 
  AND (
    token = 'e5LaAKKHvVNmFydGcls8nUaUy8bgeyi1SvGZAFrLvXM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )