use Aviogram\JWT\JWT;

$token = JWT::encode(
    JWT::createClaimSet()->setNbf(new DateTime('NOW + 1 DAY')),
    JWT::createEncryptionList()->addHS512Key('mysecret')
);

use Aviogram\JWT\JWT;

$claimSet = JWT::decode(
    $token
    JWT::createEncryptionList()->addHS512Key('mysecret')
);