UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k7mm8I+4xQ9euML4MaXkb0EQ/oy3tgCyI8wbaswMBDg=' 
WHERE 
  key_id = '7f0175d647c9160bba7a887b9c09e004eda499aab89de589114826452d6a827b' 
  AND (
    token = 'k7mm8I+4xQ9euML4MaXkb0EQ/oy3tgCyI8wbaswMBDg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00044