UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r3k6vIw1/0mAKx6iXcYgB+YfMb8qFHqWSahHbziFlp4=' 
WHERE 
  key_id = 'c81ed38a58860e9d4754846216c2d3806eb1115f9efccd81aad50b0d74dd0232' 
  AND (
    token = 'r3k6vIw1/0mAKx6iXcYgB+YfMb8qFHqWSahHbziFlp4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )