{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xeb73a23f25fa934b5757335a4dedfe8c42d091a8636f5ef665c99af2f2992c5d",
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    "signer": "0xd01d11eBc5774FDb0c3d0a7c270b93E6F4ec442e",
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}