{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7597d6924138c11c5244f153457302b817ea1b79e8bfaf07f7fa8b372a616595",
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    "signer": "0x98d647545F36CD8104C66908F6a05af375C24bBc",
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  }
}