UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OLg9ueNNivpllXRDwM8Vj3nuO9OZReWWkAz0KKDHIos=' 
WHERE 
  key_id = 'b08e8c559543b9c865762b34c4ad461e207d6df3fa405e6ee275ec06e2445d0a' 
  AND (
    token = 'OLg9ueNNivpllXRDwM8Vj3nuO9OZReWWkAz0KKDHIos=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034