OIM12 rest API how to provision entitlement

I am trying to use the rest api for provisioning entitlement

curl  -H "Content-Type: application/json"  -H "X-Requested-By: <anyvalue>"  -X POST -u xxx:xxx  -d @ent1.json https://xxxxxxxxx/iam/governance/selfservice/api/v1/requests

my json looks like this

{

   "requests": [

   {

     "requestId": "214066",

     "reqJustification": "Request Entitlement",

     "operation": "provision",

     "reqBeneficiaryList": [

      {

          "id": "2014915"

      }

     ],

     "reqTargetEntities": [

      {

          "entityId": "25",

          "entityType": "Entitlement"

        }

      ]

   }

   ]

}

I get this error

{"links":[{"rel":"self","href":"https://xxxxxx/iam/governance/selfservice/api/v1/requests"}],"requests":[{"requestId":"214066","status":"FAIL","reason":"One or more target users or requested items no longer exist in the system."}]}

The user does exist with the ID 2014915