Error creating a user RequestError: Invalid JSON for Custom Fields [error-invalid-customfield-json]

[msouidi309]

Hi, i'm trying to create a user and set a custom field, like the twitter account or something like that but it doesn't seems to work. Any problem in my json ?
Here is my variable :

var userToAdd = {
"name": "myName",
"email": "myEmail",
"password": "myPassword",
"username": "myUsername",
"sendWelcomeEmail": false,
"joinDefaultChannels": false,
"verified":false,
"requirePasswordChange":false,
"roles":["user"],
"customFields": {
"twitter": "@MyTwitter"
}
}

[MSushruth]

Facing the same issue. Has anyone found a solution for this?