UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nVkjoSmzxomnMRIB+t8hJQ0Pc7mjqv1XrHevFgu+Pr0=' 
WHERE 
  key_id = 'b50a7de267738d0d7340ee9039e95c1b1c50ddadcaed6b1587f917e85bd9f27f' 
  AND (
    token = 'nVkjoSmzxomnMRIB+t8hJQ0Pc7mjqv1XrHevFgu+Pr0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )