UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3lBHnkFM4BxfAMhmlOseDu7ef3MAzBlZWgzuhcUyLVA=' 
WHERE 
  key_id = 'f0c6f977f7a054e16b3e7a7556f35e643bfab2d73d403a702441882905100519' 
  AND (
    token = '3lBHnkFM4BxfAMhmlOseDu7ef3MAzBlZWgzuhcUyLVA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )