UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MKmR+k2YmFCHCOlHrMdYgPqUpgpXh2gEa8hl6qVt0q0=' 
WHERE 
  key_id = '8d490fb5cfb6bfb8b514c2003eff9c09c33f0e69ff05eeadf50727b141c39705' 
  AND (
    token = 'MKmR+k2YmFCHCOlHrMdYgPqUpgpXh2gEa8hl6qVt0q0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )