UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zmp7E4SzAQp8wcFzEnRNsN5EdSbarQDUAVPz6G41Buc=' 
WHERE 
  key_id = 'e8c57e588e9418fbb783c6594e93ddccd7615804f12be847b06d750c69fd40ed' 
  AND (
    token = 'Zmp7E4SzAQp8wcFzEnRNsN5EdSbarQDUAVPz6G41Buc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )