UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9EimebOMimYp8O4XxMOGfA+9AO2mcyudgv29KDqgETo=' 
WHERE 
  key_id = '51e55c8af7caddd96a28ea1ee573d25edd2950cc376662abd8acd600256557be' 
  AND (
    token = '9EimebOMimYp8O4XxMOGfA+9AO2mcyudgv29KDqgETo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )