{
  "manageEntity": {
    "action": "Update",
    "entityId": "15804435",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xae38293edd90ab073f211a6511ee56d11eb507da42e2cfc2b51544440735fb55",
    "signature": "0x65b79696642da5ad58428ad4f58dd00e3bd7c0396d78e5483edfb0c61415605c5fc2305315af3a56ad713023600802cc2845822bcf5c4a246c12d0a24e06415e1c",
    "signer": "0x0DbA57Df0116A28Fa0F7130EFD8546C93b653078",
    "userId": "15804435"
  }
}