UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRLlb3sc9vXuvZqCzAGAJ6Maeh8OhH7M78YgFgoKvss=' 
WHERE 
  key_id = '073c3e27283c01ddee7604884691e7b5f332aa7f68556a194dae18a93f639080' 
  AND (
    token = 'MRLlb3sc9vXuvZqCzAGAJ6Maeh8OhH7M78YgFgoKvss=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )