{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf6e4fcfa8679cc0ca6e53272ffd5d8e20d7dab816744f7bbfb34bd44a96fe50b",
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    "signer": "0xE16fBDed8db411cCc6FF8BC014b652282c0c8a6a",
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}