{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3f9b5177a07d14bc840ffea4ea8629840fed06924e90e43b86e18947e8e1a16f",
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    "signer": "0x3B5e1d06C494aE092c67f3BD70A9175aFbD0732C",
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  }
}