UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g6mcn0AuJWnL0tI6EvRU/TmeBM3sgG4xm9kLkYhcDUk=' 
WHERE 
  key_id = 'caeaac6b1353880b9888696a04487fec1a90929b133344b7597f2fc715c7f007' 
  AND (
    token = 'g6mcn0AuJWnL0tI6EvRU/TmeBM3sgG4xm9kLkYhcDUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )