UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n2t8Dg36VdGc3s4QPBkLuoei9TlSoBCdtFXwk8kYOfI=' 
WHERE 
  key_id = '17d2a856a01bce3ea44aac094c2d94f074561091d93d69886d578325c3144199' 
  AND (
    token = 'n2t8Dg36VdGc3s4QPBkLuoei9TlSoBCdtFXwk8kYOfI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )