...
import http.client
server_name = "server.ru"
connection_point = "/grotem/admin/SyncSolutionDatabase"
conn = http.client.HTTPConnection(server_name)
payload = "{ "Id":"f8685de0-b174-44ea-9d89-b36bab8e8043",
"TimestampFrom":0,
"TimestampTo":636219988969526110,
"DeletedEntities":[],
"ChangedEntities":[],
"FiltersToApply":[]}"
headers = {
'content-type': "application/json",
'configname': "GrotemExpress",
'configversion': "1.1.0.0",
'authorization': "Basic RGV2MTpEZXYx",
'deviceId': "66baa76a-71fe-4395-b4a6-0b77bee9526d"
}
conn.request("POST", connection_point, payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
...