Considering that you are playing with Bluemix service, I assume you are following "Implementing your first chain code tutorial"
If your forked repository you will see instructions to use branch v1.0 for Bluemix Blockchain Services (link) IBM BMX Service is (still) using Fabric v0.5.
Once you have Registered with one of the available Enroll ID you should be able to deploy your chaincode using DeploySpec (note the path: "https://github.com/romeokienzler/learn-chaincode/tree/v1.0/finished")
{
"jsonrpc": "2.0",
"method": "deploy",
"params": {
"type": 1,
"chaincodeID": {
"path": "https://github.com/romeokienzler/learn-chaincode/tree/v1.0/finished"
},
"ctorMsg": {
"function": "init",
"args": [
"hi there"
]
},
"secureContext": "user_type1_0"
},
"id": 1
}