UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2hx2jj8eZ1uyzBJs/3d8A4KIygKqlHyn+EzN6COEQic=' 
WHERE 
  key_id = '7df68d6fd1d4b15189211d874dbb516c5cbc956e781ca47bceca912641d8049d' 
  AND (
    token = '2hx2jj8eZ1uyzBJs/3d8A4KIygKqlHyn+EzN6COEQic=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )