{
  "manageEntity": {
    "action": "Update",
    "entityId": "307665340",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfd8d50d0e8451608388d1688cfe926ad2761ec54b30a5bc6b904082b7b6f72ba",
    "signature": "0x53cd63ee121705a69a6c90fa64bc4968235d1ab48824a0b7c3662d0faec0920e2a07157a932508ba91045aee34ca6ace30351a48eb3ecb422e79c83170946b121b",
    "signer": "0x11d5b0CE888Ba4Cb952eA4B5e917dBF05C349204",
    "userId": "307665340"
  }
}