UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/7fa7Z1nlp6HNlaiAKpGyuk9JUi8Blaqxr+u3yqv4+s=' 
WHERE 
  key_id = 'b50e18f487548132306c3d87f6e8d66f022515f7fc3a77debc5ee0b2d77fe980' 
  AND (
    token = '/7fa7Z1nlp6HNlaiAKpGyuk9JUi8Blaqxr+u3yqv4+s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )