UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/r1TW9tb0KuSU2oVrkjUAWMtEe8XNsSTyJHcBI93DUk=' 
WHERE 
  key_id = '950d1cf0b1cc58f8fe0a3481a5bc8cbb3b4695bf7bd9cf4c19f1fdac3b73a63f' 
  AND (
    token = '/r1TW9tb0KuSU2oVrkjUAWMtEe8XNsSTyJHcBI93DUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )