UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tLoVJ2J1XpRXrcd/vw2/oVsf9llLZ/WnA8YCWP7OsE0=' 
WHERE 
  key_id = 'a73baa28510626fce51c6fee2edfa031917cb5edb94b2e9503f01dc70b3fc1f0' 
  AND (
    token = 'tLoVJ2J1XpRXrcd/vw2/oVsf9llLZ/WnA8YCWP7OsE0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00046