UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'eROY3nzWCqhHv6oFeR3lJ+lSzSEpBKLyIqMJAO8Z/VY=' 
WHERE 
  key_id = '14ecef61f48ae8ee2f33fabf4e4a68acb20f5f397c94d33ec5e7fa64f93e5364' 
  AND (
    token = 'eROY3nzWCqhHv6oFeR3lJ+lSzSEpBKLyIqMJAO8Z/VY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )