UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x+4Ha6JsHjPQnrO7PXZDNvlDqu26yF9aUAfCW2+/HRk=' 
WHERE 
  key_id = 'c2cd234c3012b00dcc54a5a45672832d33d0a1a89c56b506ba120ce61ac9ff16' 
  AND (
    token = 'x+4Ha6JsHjPQnrO7PXZDNvlDqu26yF9aUAfCW2+/HRk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )