UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6RTOLho+DasSbCkAj9NkI9v59A0rBvPsdshObGyu1bg=' 
WHERE 
  key_id = '27c00f81c7230fc887bbdcd74a9f1e6cf1e392456c8e2f457502c70679080f99' 
  AND (
    token = '6RTOLho+DasSbCkAj9NkI9v59A0rBvPsdshObGyu1bg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )