Connection API with M Language

I’m trying to make an API connection through the M language, however, the result is: "Invalid identifier"

let authUrl = "https://api.hinova.com.br/api/sga/v2/usuario/autenticar/",

body = "{""usuario"":""informelogin"",""senha"":""12345""}",

GetToken = Json.Document(
Web.Contents(
authUrl,
[
Headers=[#"Content-Type"="application/json", "Authorization"="Bearer token"],
Content=Text.ToBinary(body)
]
)
),
token = GetToken[token],
authToken = chave,
urlrequest = "https://api.hinova.com.br/api/sga/v2",
results = Json.Document(
Web.Contents(
authUrl,
[
Headers=[#"Content-Type"="application/json", "Authorization"="Bearer token"],
Content=Text.ToBinary(body)
]
)
)
in results