UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L8f7sbWIXZm65RIX/gN7q47+KgaVKpsOCsdTJMcmSi8=' 
WHERE 
  key_id = '83571e92ed06144e99e3574d5630dbc2d2a6fa08c82911e520bd839c89339977' 
  AND (
    token = 'L8f7sbWIXZm65RIX/gN7q47+KgaVKpsOCsdTJMcmSi8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )