{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7b755706294e2e26aa059ed804314bde41f09db24a4b391225a10d5aed59fcb1",
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    "signer": "0x79Fde38E70803a0bb282FfD0274915B6993F0f7E",
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  }
}