UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V48M+HAjpWln+/6CUHdxkROVNjZq83/6oU0lX74c/So=' 
WHERE 
  key_id = 'a4c972c3d21688e4f760e2091b0372d6758f104c0a36285bf10c4580c87df362' 
  AND (
    token = 'V48M+HAjpWln+/6CUHdxkROVNjZq83/6oU0lX74c/So=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )