{
  "manageEntity": {
    "action": "Update",
    "entityId": "637526557",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x26c53a56ae9fb66f3fb25ed042597ff84641c28efdf3d97a1f958a4d93deaf45",
    "signature": "0xef83cfb5262194188dea892fcf522c0c72ac10f6cb34bda0fe81c430f89ca8823c48710aba29598f2fdf96d79a2557ddf6368c464ec72f694ade1cd347c1d6c21b",
    "signer": "0x11F615b4758A4D564f0027F265e5D3a096863427",
    "userId": "637526557"
  }
}