UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bqd4Me1WGkx2IyZZPdtzvKrodfwkheFXVisj30gG8Fw=' 
WHERE 
  key_id = '68ffd657bb65c514ccbe0e0bae9c174c12958f6bf5e13d3cce02c20acf93fe89' 
  AND (
    token = 'bqd4Me1WGkx2IyZZPdtzvKrodfwkheFXVisj30gG8Fw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )