{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x09da523cfad58c1611769f664cf9b6d747afd7376705c205cfb8e54f5f0d5584",
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    "signer": "0x35f123b418D42CA0Ea6A33E8f511959E1779cC5f",
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}