I am trying to use the /interaction/v1/events API.

I have made a request to #https:#//auth.exacttargetapis.com/v1/requestToken using my clientid and clientsecret and get back a accessToken

When I try to make a request to POST #https:#//www.exacttargetapis.com/interaction/v1/events I get back a 400 Bad Request response with message

{"message":"Runtime Error. Retry this action. Contact Global Support if the issue persists","errorcode":30000,"documentation":""}

This is the request that I am trying to send

POST https://www.exacttargetapis.com/interaction/v1/events Content-Type: application/json Authorization: Bearer 6cgKi6pGScl9AkIwkKjrH3cF Host: www.exacttargetapis.com Content-Length: 181

{"ContactKey": "ID601","EventDefinitionKey":"Cub_Competition","EstablishContactKey": false,"Data": {"FirstName":"Andy Elks","EmailAddress":"[email protected]","Choice":"Mika"}}

Why is this not working?, I have followed the documentation here https://developer.salesforce.com/docs/atlas.en-us.noversion.mc-apis.meta/mc-apis/postEvent.htm

Thanks