UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I836vH4/5HdCOfB6YkZzVH+EIhW+ewFcEkYPfRFINr0=' 
WHERE 
  key_id = '516a4cd4dfdf2ebb3372da6c06f20817abdc2ba2cdb2b32a36a1750338ec6471' 
  AND (
    token = 'I836vH4/5HdCOfB6YkZzVH+EIhW+ewFcEkYPfRFINr0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )