UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I755gbP6Lrs8KRWVaGoirwX+c1BXnDEmE62yYsS78NA=' 
WHERE 
  key_id = '7b97569c88d9b67610518983356b26e030a843a6de29f333097522be52c8585e' 
  AND (
    token = 'I755gbP6Lrs8KRWVaGoirwX+c1BXnDEmE62yYsS78NA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )