{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb2d8748e09b779decce6c3ec6e97a80b2cd6c36b61a0e27406a19ff7889d9f42",
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    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
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}