UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'Q1k8gq4QSCCoFYmDLiht3e7qtgWxxWCd253CdzFv0eQ=' 
WHERE 
  key_id = '346d4c751d54e2f9f42a20026653d1ef581a59700008f5e04455c8bb103d8288' 
  AND (
    token = 'Q1k8gq4QSCCoFYmDLiht3e7qtgWxxWCd253CdzFv0eQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )