{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x54bdadc836edce59a515617c1a93e9cb5cee796eacffd72ad8a32fbd7bcf2590",
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    "signer": "0xAA85251ed30cCbC6c38f711829968d573b29f84b",
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}