curl --location --request GET 'https://open.teambition.com/api/project/member/exist?projectId&userId' \
--header 'Authorization: Bearer <appAccessToken>' \
--header 'X-Tenant-Id: 50c32af35a87e6b2...' \
--header 'X-Tenant-Type: organization'
{
"code": 200,
"errorMessage": "string",
"result": 1
}