POST http://localhost:8080/cmx/task/operations/mdmdb3-MDM_SAMPLE
{
    "tasks": 
    [        
        {
            "taskId": "urn:b4p2:2318"
        },        
        {
            "taskId": "urn:b4p2:2209"
        }
    ],
    "comments": "John is on vacation. Releasing these tasks back to the pool of available tasks.",
    "opType": "Release"
}

POST http://localhost:8080/cmx/task/operations/mdmdb3-MDM_SAMPLE
{
    "tasks": 
    [        
        {
            "taskId": "urn:b4p2:2318",
            "comments": "Jane is on vacation."
        },        
        {
            "taskId": "urn:b4p2:2209"
            "comments": "Joe is on vacation."
        }
    ],
    "opType": "Release"
}