{
  "manageEntity": {
    "action": "Update",
    "entityId": "860699447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x662abe254dec98e1a6580f3630f37942c2ca85c4c2981e1d90f5ac846477d395",
    "signature": "0x08fa7dbb17b8c51224b041dd17940d7ba1e4dcae9bcd55ab75f9debd1960dba357f835bfb3fa91a36907bcf5c6d428d9a655e832f937330266fbe66ed9e4306a1c",
    "signer": "0xb52E8FcE6ECCedf0147ce1d916621AB9fdA52bEB",
    "userId": "860699447"
  }
}