UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eGjVM5ZfAdbbH/+JxyxXnmt2MEE6yi7/nMTrm4wEukY=' 
WHERE 
  key_id = '53e453b56bcc599b69ce06941394a0a23e3e18dcc3ed0eca3d2f635ff0960f98' 
  AND (
    token = 'eGjVM5ZfAdbbH/+JxyxXnmt2MEE6yi7/nMTrm4wEukY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )