UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+YAfJk2Lw1T12FJpb4NWuTRh2UOkwD28zD8m89gtyYA=' 
WHERE 
  key_id = '6e21485941ee3796ab01d22430a21b3de5f0025e2d4f5d1337466a17c542f260' 
  AND (
    token = '+YAfJk2Lw1T12FJpb4NWuTRh2UOkwD28zD8m89gtyYA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )