UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AmlAmejzoSYwH4z0SfpDG6kryrjm21gJYdL01DocgFU=' 
WHERE 
  key_id = '83aef3cf71cdfc271a6b5094ba378dfc4fc7a944f320d822e007c1347fc2f434' 
  AND (
    token = 'AmlAmejzoSYwH4z0SfpDG6kryrjm21gJYdL01DocgFU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )