UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5sZcUMKse40Zfv0oBsd1urD1GE552jTOOCH/DIqqElc=' 
WHERE 
  key_id = '094e5b8c9f0087a4ffb7f18651703a820d3b90253a6dc7a671142250a2532b53' 
  AND (
    token = '5sZcUMKse40Zfv0oBsd1urD1GE552jTOOCH/DIqqElc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )