UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xPXxPWK4bepQlugwkAWQev8TkEZrqIN27vi+IH4njJw=' 
WHERE 
  key_id = 'f1d55ab9f2bd452cbd350e044e1778257a502438f6e4d23cb728f73c9310b5f8' 
  AND (
    token = 'xPXxPWK4bepQlugwkAWQev8TkEZrqIN27vi+IH4njJw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )