UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xMzYSBphO3SSQzG3xoklV/FOg42hOQYKxHQf02xIe/k=' 
WHERE 
  key_id = '956820aaca858dc5526cb961a543ea533bcfc491ec8f836d3b5ec6328627479c' 
  AND (
    token = 'xMzYSBphO3SSQzG3xoklV/FOg42hOQYKxHQf02xIe/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )