{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc92ef64c31bfb4d97173efd73e8b2febc795a5d9b6a1f4bcf8adf7ab5d36e179",
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    "signer": "0x97Fe4984b83A19285FD0AB2FD038b8F477568Cf6",
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}