UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xUhfQh7lWFt9N+73Te9RzoWG/m1RkVHIiPLnBeaqajo=' 
WHERE 
  key_id = 'a85dc2ebd2c92dc137e48e53a4b9a7b8af3d1d0e81645a7747d8df3294bfa6e6' 
  AND (
    token = 'xUhfQh7lWFt9N+73Te9RzoWG/m1RkVHIiPLnBeaqajo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )