@@ -0,0 +1,13 @@
+using Nethermind.Abi;
+
+namespace Nethermind.Baseline
+{
+    public static class ContractMerkleTree
+    {
+        public static readonly AbiSignature InsertLeafAbiSig = new AbiSignature("insertLeaf",
+            new AbiBytes(32)); // leafValue
+        
+        public static AbiSignature InsertLeavesAbiSig = new AbiSignature("insertLeaves",
+            new AbiArray(new AbiBytes(32))); // leafValues
+    }
+}
I suggest using AbiDefinition and parsing json ABI like in Contracts in AuRa