UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a24kQzMT/b5RazN64h/9bRU4oi7FKJalmtko6xsNcrk=' 
WHERE 
  key_id = '73460b92f60c72d0f42f1bba5a2ea63d00c1f53cd0934a8b5692fdd39478f1f5' 
  AND (
    token = 'a24kQzMT/b5RazN64h/9bRU4oi7FKJalmtko6xsNcrk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00037