diff --git a/IStateHolder.sol b/IStateHolder.sol
index 8b4b4f3..1b4cd7c 100644
--- a/IStateHolder.sol
+++ b/IStateHolder.sol
@@ -6,8 +6,8 @@ interface IStateHolder {
 
     function getProxy() external view returns (address);
     function setProxy() external;
-    function getState(uint256 i) external view returns (string memory name, string memory dataType, bytes memory value);
-    function getInfo(string calldata varName) external view returns (string memory dataType, bytes memory value, uint256 position);
+    function toJSON() external view returns(string memory);
+    function toJSON(uint256 start, uint256 l) external view returns(string memory);
     function getStateSize() external view returns (uint256);
     function exists(string calldata varName) external view returns(bool);
     function getDataType(string calldata varName) external view returns(string memory dataType);
diff --git a/MVDFunctionalitiesManager.sol b/MVDFunctionalitiesManager.sol
index ad0a621..4648578 100644
--- a/MVDFunctionalitiesManager.sol
+++ b/MVDFunctionalitiesManager.sol
@@ -24,7 +24,7 @@ contract MVDFunctionalitiesManager is IMVDFunctionalitiesManager, CommonUtilitie
         uint256 getMinimumBlockNumberSourceLocationId, address getMinimumBlockNumberFunctionalityAddress,
         uint256 getEmergencyMinimumBlockNumberSourceLocationId, address getEmergencyMinimumBlockNumberFunctionalityAddress,
         uint256 getEmergencySurveyStakingSourceLocationId, address getEmergencySurveyStakingFunctionalityAddress,
-        uint256 checkVoteResultSourceLocationId, address checkVoteResultFunctionalityAddress) public override {
+        uint256 checkVoteResultSourceLocationId, address checkVoteResultFunctionalityAddress) public {
         if(getMinimumBlockNumberFunctionalityAddress == address(0)) {
             return;
         }
diff --git a/MVDFunctionalityModelsManager.sol b/MVDFunctionalityModelsManager.sol
index bfc853e..6da874b 100644
--- a/MVDFunctionalityModelsManager.sol
+++ b/MVDFunctionalityModelsManager.sol
@@ -7,7 +7,7 @@ contract MVDFunctionalityModelsManager is IMVDFunctionalityModelsManager {
 
     mapping(string => Functionality) private _wellKnownFunctionalityModels;
 
-    constructor() public override {
+    constructor() public {
         init();
     }
 
diff --git a/MVDFunctionalityProposal.sol b/MVDFunctionalityProposal.sol
index 2112871..881a8b3 100644
--- a/MVDFunctionalityProposal.sol
+++ b/MVDFunctionalityProposal.sol
@@ -34,7 +34,7 @@ contract MVDFunctionalityProposal is IMVDFunctionalityProposal, CommonUtilities
     uint256 private _totalRefuse;
 
     constructor(string memory codeName, address location, string memory methodSignature, string memory returnAbiParametersArray,
-        string memory replaces, address proxy) public override {
+        string memory replaces, address proxy) public {
         init(codeName, location, methodSignature, returnAbiParametersArray, replaces, proxy);
     }
 
diff --git a/MVDProxy.sol b/MVDProxy.sol
index 9f18121..3ac563d 100644
--- a/MVDProxy.sol
+++ b/MVDProxy.sol
@@ -20,7 +20,7 @@ contract MVDProxy is IMVDProxy {
 
     address[] private _delegates;
 
-    constructor(address votingTokenAddress, address stateHolderAddress, address functionalityModelsManagerAddress, address functionalityProposalManagerAddress, address functionalitiesManagerAddress) public override {
+    constructor(address votingTokenAddress, address stateHolderAddress, address functionalityModelsManagerAddress, address functionalityProposalManagerAddress, address functionalitiesManagerAddress) public {
         if(votingTokenAddress == address(0)) {
             return;
         }
diff --git a/StateHolder.sol b/StateHolder.sol
index c7ce354..da796fa 100644
--- a/StateHolder.sol
+++ b/StateHolder.sol
@@ -27,7 +27,7 @@ contract StateHolder is IStateHolder, CommonUtilities {
     address private _proxy;
     uint256 private _stateSize;
 
-    constructor() public override {
+    constructor() public {
         init();
     }
 
@@ -36,23 +36,19 @@ contract StateHolder is IStateHolder, CommonUtilities {
         _state.push(Var("", DataType.BYTES, "", 0, false));
     }
 
-    function getState(uint256 i) public override view returns (string memory, string memory, bytes memory) {
-        uint256 position = 0;
-        for(uint256 z = 1; z < _state.length; z++) {
-            Var memory v = _state[z];
-            if(v.active && position++ == i) {
-                return (v.name, toString(v.dataType), v.value);
-            }
-        }
+    function toJSON() public override view returns(string memory) {
+        return toJSON(0, _state.length - 1);
     }
 
-    function getInfo(string memory varName) public override view returns (string memory dataType, bytes memory value, uint256 position) {
-        Var memory v = _state[_index[varName]];
-        if(v.active) {
-            dataType = toString(v.dataType);
-            value = v.value;
-            position = v.position - 1;
+    function toJSON(uint256 start, uint256 l) public override view returns(string memory json) {
+        uint256 length = start + 1 + l;
+        json = "[";
+        for(uint256 i = start; i < length; i++) {
+            json = !_state[i].active ? json : string(abi.encodePacked(json, '{"name":"', _state[i].name, '","type":"', toString(_state[i].dataType), '"}', i == length - (_state[i].active ? 1 : 0) ? "" : ","));
+            length += _state[i].active ? 0 : 1;
+            length = length > _state.length ? _state.length : length;
         }
+        json = string(abi.encodePacked(json, ']'));
     }
 
     function getStateSize() public override view returns (uint256) {
diff --git a/VotingToken.sol b/VotingToken.sol
index 1a619c3..4426740 100644
--- a/VotingToken.sol
+++ b/VotingToken.sol
@@ -16,7 +16,7 @@ contract VotingToken is IERC20, IVotingToken {
     string private _name;
     string private _symbol;
 
-    constructor(string memory name, string memory symbol, uint256 decimals, uint256 totalSupply) public override {
+    constructor(string memory name, string memory symbol, uint256 decimals, uint256 totalSupply) public {
         if(totalSupply == 0) {
             return;
         }