UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '81+oiCGUSmf1fxD6ObIA3+rxqNxhmxBKKsFF6dgDkMM=' 
WHERE 
  key_id = 'f261541e863c66380d0fb29ccdbdaec3cd276d8ab6497aed9834266d3c01b9b5' 
  AND (
    token = '81+oiCGUSmf1fxD6ObIA3+rxqNxhmxBKKsFF6dgDkMM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )