UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WpFoOxzxhJImv+NlpCsDTld3DpamZVDfkm+NrRgcXz4=' 
WHERE 
  key_id = '99df2b5ad94920676888b47ac48d046e4f3f931b094b9ad946335468f9202ce9' 
  AND (
    token = 'WpFoOxzxhJImv+NlpCsDTld3DpamZVDfkm+NrRgcXz4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )