post https://sandbox.fiatrepublic.com/passport/oauth/token
We have implemented rate limiting for the /oauth/token endpoint.
The rate limit allows up to 180 requests per minute per clientId and userId.
If this limit is exceeded, the API will return an error with the message:
AUTHENTICATION FAILED. Too many requests.
The proper time for re-trying will be calculated dynamically based on the rate of requests being sent.