{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xba8b06da4e765ceab063743d7c8ed4cc6cf00eaf3ba4c331cd4aa374b4e2c770",
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    "signer": "0x9F6E62DAd6Ffc233b9fBE5761e195A3784428B83",
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}