UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kNdVnlfyFIIZdAF0VOseWpPEYO/mPaePqyLz34ExLrc=' 
WHERE 
  key_id = '51f1af46dee3a78f6d762858d9e86e8aad99d3a62449582a97092a6405139fd6' 
  AND (
    token = 'kNdVnlfyFIIZdAF0VOseWpPEYO/mPaePqyLz34ExLrc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )