UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'unxFaweI7Pq3epxfOxgDG3EASETHFG8kw9T7AMXnXd4=' 
WHERE 
  key_id = '8a5438215cf378e09598f7190047d64355b93cde054b56867444a9a2495f29af' 
  AND (
    token = 'unxFaweI7Pq3epxfOxgDG3EASETHFG8kw9T7AMXnXd4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )