UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Du+Yre9hVnyf3Np68beRvu1YzHH4ASVKK+/5vEM+YEc=' 
WHERE 
  key_id = 'a38c09c63f23b7e6434a5b3410f4004c78e1d5200b2bb6016c818245680799a1' 
  AND (
    token = 'Du+Yre9hVnyf3Np68beRvu1YzHH4ASVKK+/5vEM+YEc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )