{
  "manageEntity": {
    "action": "Update",
    "entityId": "395850352",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4913b46a4ed1c4041e4b098730cbac7e2d1a167adb277eb656fa71ebfaf2c347",
    "signature": "0xcba0b0c4da2157dca9ac4aa8ac71b6774cd305954732154efe0124b2c730e8973b196a716f492b45118658048be79a82a47c367ff4c566bc2ec71275bcaa64451b",
    "signer": "0x80861149430614fcC9eaDdd012d86a479A9C8969",
    "userId": "395850352"
  }
}