UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'FRyA6VkyvXKuK3CzjE0V8g6VKFNK3A7TVD+tS/ONphE=' 
WHERE 
  key_id = '81ccfef4bc73b7985d903408b9b2545a8c3b5b62ffbe16f7e04db18979b68591' 
  AND (
    token = 'FRyA6VkyvXKuK3CzjE0V8g6VKFNK3A7TVD+tS/ONphE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )