UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vpa0teCg370rAwY7jOW8w993mD3EVa+06fsGsFj+h5Y=' 
WHERE 
  key_id = '15fad4dee55763598b19a4fd9287effd76a8b41624aca031c14fe01799532b5a' 
  AND (
    token = 'Vpa0teCg370rAwY7jOW8w993mD3EVa+06fsGsFj+h5Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )