UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gu3SFYU8gilpmDjq5n4M4gdRlHJzI9h/kvzg8KRz0Og=' 
WHERE 
  key_id = '240596a971156bcc8cb8a8fabbfd4ad945b981592fc2fc25387d9f44dd97f578' 
  AND (
    token = 'gu3SFYU8gilpmDjq5n4M4gdRlHJzI9h/kvzg8KRz0Og=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )