UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KcyzbdFX3EsPJyiDvZGqeWj6vK2V1y9pTgvLQX4MMqQ=' 
WHERE 
  key_id = '4640e26ead958699fdec0a301a4f571442d1dd49e497d044c635b17978c24bbe' 
  AND (
    token = 'KcyzbdFX3EsPJyiDvZGqeWj6vK2V1y9pTgvLQX4MMqQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )