{
  "manageEntity": {
    "action": "Save",
    "entityId": "1081644738",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc682dcd8bf99353e08a235bc18f7d8b97a256d5722a3daa21018f76c47a85a2a",
    "signature": "0x892d8133b3b8d961b4f4d700ad9f0c7a0c90aeb1e291cbe228bf52815e0af4023ec2579c509b60978159bdac96850c16a32720adec45227d7991520239e471611c",
    "signer": "0x0Cb8508DC22f3eC228338F94fB8B4063F7418EDF",
    "userId": "95478297"
  }
}