curl "https://api.phrase.com/v2/projects/:project_id/jobs/:job_id/comments" \
  -u USERNAME_OR_ACCESS_TOKEN \
  -X POST \
  -d '{"message":"Some message..."}' \
  -H 'Content-Type: application/json'

{
  "id": "abcd1234cdef1234abcd1234cdef1234",
  "message": "Some message...",
  "job_id": "abcd1234cdef1234abcd1234cdef1234",
  "user": {
    "id": "abcd1234cdef1234abcd1234cdef1234",
    "username": "joe.doe",
    "name": "Joe Doe"
  },
  "created_at": "2015-01-28T09:52:53Z",
  "updated_at": "2015-01-28T09:52:53Z"
}