Question Import Json Map and Render it

Problem:
I have created a mmorpg in .NET and I'm now working on a client port to Unity. In my mmorpg I have map files in the json format that I intend to load into unity and render from code.

Now, I've been googling but I can not find any such example. All I see is info about the Tilemap system. I have seen Tiled2Unity but I do not use Tiledmaps. I use my own custom maps. I have no issues with loading the data, just a matter of what I do with my loaded map object in C# to blit it to the screen.

Goal:
I want to load the map files into memory and render the needed graphics to the screen. Preferably to be able to create a tile from C# script and put it into a tilemap for example.

Questions:
Do anybody know where I should be looking or searching for?

Any info is appreciated!

 

What does this mean? A heightmap? A grid of tiles? A list of lines? A link to a terrain file?

To see what I mean, pick one piece of data in your JSON, such as this:

{

    "oneTileData": 123456

}

... and go explain exactly what the payload field

123456

means.

And by "what it means" you need to specify what code steps are taken, such as:

"load sprite named 123456 and place it in this tile spot."

 

I didn't think the content would matter, as regardless of the data, I want to render it from code as that is where the map data will be.

My map file holds an array of (x,y) for each tile on the map. What graphic used for each tile is determined by a X/Y position on an image. So the goal is basically to render a 32*32 from an image to the screen.

Example: