UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ei3Pg4mUkPI1F3QWx67OOsovPUMXBFc2vnn8m+9DUFY=' 
WHERE 
  key_id = '78545ea68061e683b3fd362c8816157d236041f1a4a67d6a2e3955bbe6f5174c' 
  AND (
    token = 'ei3Pg4mUkPI1F3QWx67OOsovPUMXBFc2vnn8m+9DUFY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )