UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '254fq9roPX9O+Cljlfq5lXAZtH0UbwpoXGcahsslUY0=' 
WHERE 
  key_id = 'd63f12756356d937e42bb1e2a1b1dd0efa5445895107706276a263b56e5b7577' 
  AND (
    token = '254fq9roPX9O+Cljlfq5lXAZtH0UbwpoXGcahsslUY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00018