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contracts...pointsData.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;


contract pointsData {

    struct layerData {
        bytes data;
    }

    mapping(uint256 => layerData) private CellLayerData;

    function addDataToLayer(bytes memory _data, uint256 tokenId) external {
        CellLayerData[tokenId].data = _data;
    }

    function multiAdd(bytes[] memory _data, uint256[] memory tokenId) external {
        
        for (uint256 i=0; i<tokenId.length; i++) {
            CellLayerData[tokenId[i]].data = _data[i];
        }
    }

    function readId(uint256 tokenId) external view returns (bytes memory) {
        return CellLayerData[tokenId].data;
    }

}