UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4KtuD/OaDSk9gBY3MmOhYxkOOEWBiZY1UYWJk1O84NA=' 
WHERE 
  key_id = '7c76934948f2b036e29bc625b6bdd778c96b7b5802f52c45747049651c152f5e' 
  AND (
    token = '4KtuD/OaDSk9gBY3MmOhYxkOOEWBiZY1UYWJk1O84NA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )