UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zHN545zb65NNWTr3/ZfpcS9VyIM75XyOwSI2KRlfPCw=' 
WHERE 
  key_id = 'a6d9a73907a35b95fefd0a1eb7dfeec7898a7129274d9f929609515c0eeac0d0' 
  AND (
    token = 'zHN545zb65NNWTr3/ZfpcS9VyIM75XyOwSI2KRlfPCw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )