UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SauSffSAqvMDZuZz6crbhswmrKohTGnGRRckPMXNvCo=' 
WHERE 
  key_id = '1642efc1b46c1173ee08e4261a4c9c4e38707c519cd0c6029ba84be619141f2e' 
  AND (
    token = 'SauSffSAqvMDZuZz6crbhswmrKohTGnGRRckPMXNvCo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )