UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x8sU9pLZ2f+CQFAWSNUfgDUawH9AY7Ifj2BlD2CVo/s=' 
WHERE 
  key_id = '6a475c3b52efbb12ac0893351667348e5b922c514a1dd76d851f471182dde36a' 
  AND (
    token = 'x8sU9pLZ2f+CQFAWSNUfgDUawH9AY7Ifj2BlD2CVo/s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )