UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EM7vvh0jOz7zppXpjNaHh759r3ZyFcQ6IMcO5lz0ktY=' 
WHERE 
  key_id = '171c94b84013b68f9826a59f3f78ca4d788359afe07e7f1c8504ed0b36158103' 
  AND (
    token = 'EM7vvh0jOz7zppXpjNaHh759r3ZyFcQ6IMcO5lz0ktY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )