UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QGsqMh/etlsmI1Djsf94ZCYe3XtUy5+cwy1TAGH99ss=' 
WHERE 
  key_id = '6eed833505fafbb2c843eca08d94fc6c8622eea14f671297b5aa04c127e3e4a6' 
  AND (
    token = 'QGsqMh/etlsmI1Djsf94ZCYe3XtUy5+cwy1TAGH99ss=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )