{
  "manageEntity": {
    "action": "Update",
    "entityId": "305860963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe01fd548a7649b8f001a89d97135f6888f03c8313ff4cea1529b6fd2ecbb1d8a",
    "signature": "0xda0f6dc31c40184c524480dc37991bcfa6d3e199a8fd8b34eebb30978ae1f565615d899e9c7a1cf1f18f756edbefa67ced49e39086cf27aa346936b01970bbeb1c",
    "signer": "0x14134DBD05b0516e684ac164fDd5D3869ACc2388",
    "userId": "305860963"
  }
}