{
  "manageEntity": {
    "action": "Update",
    "entityId": "574523826",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67a8580c2c6f3bb608125168d236bd574adbc4a96f1571ca4328af6215fd44ff",
    "signature": "0xfdbdbea9f831e2e6c74234e6071549d6a19040988ceca927cee1e3107e6e8d602bdf114c500e39ec49493f31768a63d28ac6f15f1680dce478c668933adbe2281c",
    "signer": "0x0a85a456198b34736212EaE9e80dB1f2AD877Ebe",
    "userId": "574523826"
  }
}