Get a payload for further token receipt
GET /v2/tonconnect/payload HTTP/1.1 Host: ton-open-api.nownodes.io Accept: */*
payload
{ "payload": "84jHVNLQmZsAAAAAZB0Zryi2wqVJI-KaKNXOvCijEi46YyYzkaSHyJrMPBMOkVZa" }