{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x811dd89a16def7298919f1856ce2e98229be94a7f0e0ea09b29eea217bc503c5",
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    "signer": "0x3D8ccd09c9F5D4f6D75375cFe66c924ED2B6CA52",
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}