{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0f7fa5f6e3a2e7e690c20b9a1624621509e366f46726052b4bc821bead6a2bf4",
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    "signer": "0x283Dcc42cf4130824Aef4f8Fd219Eee78bF68b42",
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}