{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb82469e56ebd73f1e1ffa0e957d438535d4d9abf6769a86f8296ccb58359a8aa",
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    "signer": "0x811cFd0297c116966284Bde337C5e1262690B266",
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  }
}