UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '39h8YgagYQOz7QRZptHZB7JKYrQBWQn6cz4A2+4/CUw=' 
WHERE 
  key_id = '294f0313338c408cee6115cc8b7c5387823c73e6d7b71ad335abe9b58e6a6fab' 
  AND (
    token = '39h8YgagYQOz7QRZptHZB7JKYrQBWQn6cz4A2+4/CUw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )