RewardPaid: PlainDescriptor<
    {
        relayer: SS58String;
        reward: bigint;
        rewards_account_params: {
            bridged_chain_id: FixedSizeBinary<4>;
            lane_id: FixedSizeBinary<4>;
            owner: Enum<{ BridgedChain: undefined; ThisChain: undefined }>;
        };
    },
>

Reward has been paid to the relayer.