UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '83rYJCArNgvefTiEJasC+YgaDgYYpggVop04tnio8Ls=' 
WHERE 
  key_id = 'b437c79bacbfb671145f390840e2f70ae997af128151da531f9d328a9e01b791' 
  AND (
    token = '83rYJCArNgvefTiEJasC+YgaDgYYpggVop04tnio8Ls=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )