UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ext1Ow+Icw0M3s91jpO59rccn9cSif3Op4MwhUfYm4E=' 
WHERE 
  key_id = 'cbcdfb8676912bec6a701509b55c2c6795d22bac2ab9f706dda7711b7100b82c' 
  AND (
    token = 'ext1Ow+Icw0M3s91jpO59rccn9cSif3Op4MwhUfYm4E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )