UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n0kTxdRO247+eBwlBK1EBfezIUxCwl0E3BZ+I+/KWpU=' 
WHERE 
  key_id = '6e903c5c451ad8a31590e69e91a1f9b76829e1019e91606f8cdf73af4c303ed3' 
  AND (
    token = 'n0kTxdRO247+eBwlBK1EBfezIUxCwl0E3BZ+I+/KWpU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )