What is the best way to store key value pairs in bubble local database?

Sharing the sample of how the JSON looks

[{
“whatsapp”: {
“status”: “true”,
“count”: 1
},
“messenger”: {
“status”: “false”,
“count”: 2
}
}]

You could just store it as text.

Depends where you are getting the data from. You can call your own app’s API and get bubble to parse it and generate the structure.