UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MrH4JyAym8LnOGslBhxFRVxAAfCcjUqF+mYSPEGCgxc=' 
WHERE 
  key_id = '6a84beeb774e5de27b9b8d781e639d9b2260625d0a732b9352e2a113ac6480bb' 
  AND (
    token = 'MrH4JyAym8LnOGslBhxFRVxAAfCcjUqF+mYSPEGCgxc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )