UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k5BiGhYj5Mg1p4300lhNLDEtSRPEOv3U5wz/sdMRay8=' 
WHERE 
  key_id = '2596edf76485ad4f43748d1c55fa687bf669bdf3e88e9b29d3003425a36d2568' 
  AND (
    token = 'k5BiGhYj5Mg1p4300lhNLDEtSRPEOv3U5wz/sdMRay8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )