UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xsO7RcmQux9nGY257er94IrV6fgbfsHzcsWBNagV48w=' 
WHERE 
  key_id = '81c79bb8b29c46c3b710e52cd27f66f49e31bcfa25f73503ebfb51b7c91e4055' 
  AND (
    token = 'xsO7RcmQux9nGY257er94IrV6fgbfsHzcsWBNagV48w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )