UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NiwI57h2AXTxyspHj2hJLZeK15VLKetph/bl/SBJmDU=' 
WHERE 
  key_id = 'c49acada3c50fbe6d496980c7d053288c792985d366390fd27088af506a0b379' 
  AND (
    token = 'NiwI57h2AXTxyspHj2hJLZeK15VLKetph/bl/SBJmDU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )