UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DVykNAmlbY+hsl4O1EPX75C+3JYNotbRB9cEhbew1cg=' 
WHERE 
  key_id = '3fe03e90861acf590497e05ca122153b7743011339ec332123d90b6e88123692' 
  AND (
    token = 'DVykNAmlbY+hsl4O1EPX75C+3JYNotbRB9cEhbew1cg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )