UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fcKE/cC2lMt+vROfnlmB8Y3GbshoSftkIDoMjcxtvic=' 
WHERE 
  key_id = '50a546d80490fbdd25cc26984005a26db52fa99d44d6dc63313026000eda5a33' 
  AND (
    token = 'fcKE/cC2lMt+vROfnlmB8Y3GbshoSftkIDoMjcxtvic=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )