UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Emj9JY//T0yfMyjWUJEm1PzyPiEd0dRu0eSsbVxdeI0=' 
WHERE 
  key_id = '2ec6d8cabd2a83f984f314e6b127609898c03b24f461866f4cd41304d420f321' 
  AND (
    token = 'Emj9JY//T0yfMyjWUJEm1PzyPiEd0dRu0eSsbVxdeI0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )