declare function recoverTypedSignatureV4(signObj: any, signature: string): string;
declare function formatAddress(address: string): string;
declare function buildLoginSignMsg(nonce: string, tips: string): {
    types: {
        EIP712Domain: {
            name: string;
            type: string;
        }[];
        set: {
            name: string;
            type: string;
        }[];
    };
    primaryType: string;
    domain: {
        name: string;
        version: string;
    };
    message: {
        tips: string;
        nonce: string;
    };
};
declare const sign: ({ user, token, amount, saltNonce, }: {
    user: string;
    token: string;
    amount: number | string;
    saltNonce?: string;
}) => Promise<{
    token: string;
    amount: string;
    startTime: number;
    saltNonce: string;
    signature: string;
}>;

export { buildLoginSignMsg, formatAddress, recoverTypedSignatureV4, sign };