UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'H+g2mS527V2ucE+dYMKEOmstDDDD5uFuONkW6aEPqFg=' 
WHERE 
  key_id = '0819d01851477a4b93c3de97af692964f6dd9445542a3ff0bb9550df44529d26' 
  AND (
    token = 'H+g2mS527V2ucE+dYMKEOmstDDDD5uFuONkW6aEPqFg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )