Problems Updating File on GitHub Using Curl From Node JS

I am trying to update a file on my GitHub repo using curl. Unfortunately it keeps giving me the same error message of "Problems parsing JSON". The command that I am using is:

curl -i -X PUT -H "Authorization: token <token>" -H "Content-Type: application/json" -d '{\"message\": \"<message>\", \"committer\": { \"name\": \"<name>\", \"email\": \"<email_address>\" }, \"content\": \"<contents_of_file_in_base64>\", \"sha\": \"<SHA_hash>\"}' https://api.github.com/repos/<user>/<repo>/contents/<data_path>

This command is being sent via node js. Anyone have any ideas what I am doing wrong?