UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u5K/WgiSPY2V/VtMCZnauQmBCG461cLrJchJ9DXhFjU=' 
WHERE 
  key_id = '12337adf4022d4220dec93e16abe4653b076ad83df1c925621b9f07141945986' 
  AND (
    token = 'u5K/WgiSPY2V/VtMCZnauQmBCG461cLrJchJ9DXhFjU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00021