UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6CmK5YbTCm/tWvOJOCs5nd9lI60w6vsOIwFOb10wUw=' 
WHERE 
  key_id = '271930d475735f7d66eb947e95f0254a90e3eb4c5f39b59027b87c74b8c4053a' 
  AND (
    token = 'a6CmK5YbTCm/tWvOJOCs5nd9lI60w6vsOIwFOb10wUw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )