UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G46QxCqXDbPAddii1Vz2h3AtSUAizLYvblKJzABG1PI=' 
WHERE 
  key_id = '50fad87ebf9f030a5a1c360996804ee9f923c608e4d952663f406819f8ddace1' 
  AND (
    token = 'G46QxCqXDbPAddii1Vz2h3AtSUAizLYvblKJzABG1PI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )