Swift response

Received text message: {"tu":[{"t":"2020-11-18T06:47:14.650473023Z","p":"0.0000055","a":"3190.70775242","st":false},{"t":"2020-11-18T06:27:55.438969093Z","p":"0.00000592","a":"2149.909268658974","st":false},{"t":"2020-11-18T06:27:55.438969093Z","p":"0.0000058","a":"4216.91164972452","st":false},{"t":"2020-11-18T06:27:55.438969093Z","p":"0.0000056","a":"950.68459017","st":false},{"t":"2020-11-18T06:27:46.12477346Z","p":"0.0000056","a":"9049.31540983","st":false},{"t":"2020-11-18T06:27:46.12477346Z","p":"0.00000559","a":"377.68459017","st":false},{"t":"2020-11-18T06:27:46.12477346Z","p":"0.0000055","a":"573","st":false},{"t":"2020-11-18T06:20:05.433117475Z","p":"0.00000501","a":"81","st":true},{"t":"2020-11-18T01:23:50.464523153Z","p":"0.00000501","a":"1111","st":true},{"t":"2020-11-18T01:23:36.728302348Z","p":"0.00000501","a":"429.98207172","st":true},{"t":"2020-11-18T01:23:36.728302348Z","p":"0.00000502","a":"20.01792828","st":true},{"t":"2020-11-18T00:18:27.635092166Z","p":"0.00000505","a":"100","st":true},{"t":"2020-11-17T23:15:45.639266Z","p":"0.00000501","a":"1347.09702971","st":true},{"t":"2020-11-17T23:15:45.639266Z","p":"0.00000505","a":"144.90297029","st":true},{"t":"2020-11-17T22:07:52.953243Z","p":"0.00000515","a":"919.34","st":false},{"t":"2020-11-17T21:33:33.8912Z","p":"0.00000501","a":"103.80576771","st":true},{"t":"2020-11-17T21:33:04.439202Z","p":"0.00000502","a":"20.01792828","st":true},{"t":"2020-11-17T21:32:37.751355Z","p":"0.00000509","a":"231.69086713","st":true},{"t":"2020-11-17T21:32:03.866792Z","p":"0.00000515","a":"5.48543688","st":true},{"t":"2020-11-17T21:03:29.950449Z","p":"0.00000515","a":"383.77087379","st":true},{"t":"2020-11-17T21:03:29.950449Z","p":"0.00000515","a":"105.22912621","st":true},{"t":"2020-11-17T20:27:34.888999Z","p":"0.00000515","a":"189","st":true},{"t":"2020-11-17T19:00:41.29656Z","p":"0.00000559","a":"3457.96779964","st":false},{"t":"2020-11-17T18:25:38.043126Z","p":"0.00000509","a":"79.06713287","st":true},{"t":"2020-11-17T17:57:27.949775Z","p":"0.00000509","a":"63.7965","st":true},{"t":"2020-11-17T17:53:02.222451Z","p":"0.00000509","a":"184.0094","st":true},{"t":"2020-11-17T17:52:30.122021Z","p":"0.00000509","a":"206.683","st":true},{"t":"2020-11-17T17:51:53.293005Z","p":"0.00000509","a":"210.0593","st":true},{"t":"2020-11-17T17:51:43.26542Z","p":"0.000005","a":"509.254","st":true},{"t":"2020-11-17T17:51:33.720428Z","p":"0.00000509","a":"187.9978","st":true},{"t":"2020-11-17T16:49:26.754125Z","p":"0.00000462","a":"23.21715151548","st":false},{"t":"2020-11-17T16:48:33.025293Z","p":"0.00000462","a":"1547.64502164","st":false},{"t":"2020-11-17T16:47:24.391997Z","p":"0.00000462","a":"3429.13782684452","st":true},{"t":"2020-11-17T16:47:11.675018Z","p":"0.00000463","a":"242.08423326","st":true},{"t":"2020-11-17T16:47:11.675018Z","p":"0.00000471","a":"135","st":true},{"t":"2020-11-17T16:37:38.410927Z","p":"0.0000058","a":"256.6506024","st":false},{"t":"2020-11-17T16:10:24.939142Z","p":"0.00000584","a":"193.62905982","st":false},{"t":"2020-11-17T16:01:12.625406Z","p":"0.0000051","a":"1363.42","st":false},{"t":"2020-11-17T15:31:45.202769Z","p":"0.0000052","a":"1256.25","st":false},{"t":"2020-11-17T15:31:37.219525Z","p":"0.0000052","a":"1848.42","st":false},{"t":"2020-11-17T15:12:18.910886Z","p":"0.00000541","a":"58.38817005","st":false},{"t":"2020-11-17T15:01:29.801422Z","p":"0.0000054","a":"307.99937757901675219","st":false},{"t":"2020-11-17T15:01:29.801422Z","p":"0.00000499","a":"87.33062242098324781","st":false},{"t":"2020-11-17T14:37:50.803914Z","p":"0.00000499","a":"1417.23","st":false},{"t":"2020-11-17T14:37:43.950162Z","p":"0.00000499","a":"2004","st":false},{"t":"2020-11-17T14:37:35.694507Z","p":"0.00000499","a":"186.13","st":false},{"t":"2020-11-17T14:35:06.348436Z","p":"0.00000455","a":"3446","st":true},{"t":"2020-11-17T14:35:06.348436Z","p":"0.00000475","a":"231.44421052","st":true},{"t":"2020-11-17T14:35:06.348436Z","p":"0.000005","a":"477.85116705901675219","st":true},{"t":"2020-11-17T14:34:34.283463Z","p":"0.000005","a":"689.81483294098324781","st":true},{"t":"2020-11-17T14:34:34.283463Z","p":"0.000005","a":"500","st":true},{"t":"2020-11-17T14:34:34.283463Z","p":"0.000005","a":"20