Request Error

[wearstudio]

Hi! Our backend team create schema with mutation

--data '{"query":"mutation Login { login(input: { email: "example@app.app", password: "aasdasd" })
{ __typename, ...on LoginAuthToken { accessToken refreshToken }, ...on InvalidCredentials
{ message } }}"}'

In unity inspector it look like

When I try to execute query i have error
GraphApi.Query query = _requests.GetQueryByName("Login", GraphApi.Query.Type.Mutation);
var result = await _requests.Post(query);
Debug.Log(result.downloadHandler.text);

{"errors":[{"message":"Field "login" of type "LoginUserResult!" must have a selection of subfields. Did you mean "login { ... }"?","extensions":{"code":"GRAPHQL_VALIDATION_FAILED","exception":{"stacktrace":["GraphQLError: Field "login" of
type "LoginUserResult!" must have a selection of subfields. Did you mean "login { ... }"?","
at Object.Field (/app/node_modules/graphql/validation/rules/ScalarLeafsRule.js:40:31)","
at Object.enter (/app/node_modules/graphql/language/visitor.js:323:29)","
at Object.enter (/app/node_modules/graphql/utilities/TypeInfo.js:370:25)","
at visit (/app/node_modules/graphql/language/visitor.js:243:26)","
at validate (/app/node_modules/graphql/validation/validate.js:69:24)","
at validate (/app/node_modules/apollo-server-core/dist/requestPipeline.js:187:39)","
at processGraphQLRequest (/app/node_modules/apollo-server-core/dist/requestPipeline.js:90:34)","
at runMicrotasks ()"," at processTicksAndRejections (node:internal/process/task_queues:96:5)","
at async processHTTPRequest (/app/node_modules/apollo-server-core/dist/runHttpQuery.js:187:30)"]}}}]}

Can you help me?