{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x987906360a9f3fc8933a0633ace5d58b0330f7117f22a93281f2a30e786fcad8",
    "signature": "0x2042864e58ca2698e77cc912b5e4dd6def7ec6e0c27534067d7a9eae0ba6f9b50463394f7e0f54e4dcb7489d6e8cabfb7844574a49391c217adadcb2d0b81fc71c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}