UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R4w4MuqJOPV2laQDM3bSZRgIHLkyZ1GpnKTJU0UQmjM=' 
WHERE 
  key_id = '6494ddd3263912e37c305d1a27f2d36e473216a5ee2b758b5f1e989f27447c92' 
  AND (
    token = 'R4w4MuqJOPV2laQDM3bSZRgIHLkyZ1GpnKTJU0UQmjM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )