UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kr6H2OIDAnr3VX3Gd7UwQmi8gRNM7foc23eGpOxpQzM=' 
WHERE 
  key_id = '74dfd35809711bfbd9365b5b6710b39f0be3a0b0b4ebbf94dcdc1c0684c2df3c' 
  AND (
    token = 'Kr6H2OIDAnr3VX3Gd7UwQmi8gRNM7foc23eGpOxpQzM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )