covidapp - interaction

{
   "_comment":"
            p: platform,
            v: versione
            i: device id
            z: lista delle interazioni pushate
            w: timestamp in secondi
            x: lat
            y: lng
            o: device id of interacted device
            t: interval of the interaction
            d: distance with enum (i, n, f)
            s: dispance in mt
            r: absolute value of rssi",
   "p":"i",
   "v":5,
   "i":1763,
   "z":[
      {
         "w":1588326631,
         "x":"9.18398",
         "y":"45.45514",
         "o":984996457,
         "t":189,
         "d":"n",
         "s":"1.8",
         "r":64
      },
      {
         "d":"f",
         "w":1588326812,
         "x":"9.18401",
         "y":"45.45517",
         "o":984996457,
         "t":376,
         "r":68,
         "s":"3.4"
      },
      {
         "t":10,
         "s":"1.3",
         "w":1588330038,
         "x":"9.18399",
         "y":"45.45523",
         "o":984996457,
         "r":61,
         "d":"f"
      }
   ]
}