UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nGycp3cpiw+QUTDxPzGfwYo7eWCjQEjTcEX/IzOoCik=' 
WHERE 
  key_id = '51de87a0bd87966549d2a0daa2bb7ce03893c3edfbb01c241ed2d6e311c8240a' 
  AND (
    token = 'nGycp3cpiw+QUTDxPzGfwYo7eWCjQEjTcEX/IzOoCik=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )