{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcaf14acae50bf8300d0f074366b72a23cccbd12e85d840164ccbc1ae0a25320e",
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    "signer": "0x8ed8490C74f2ed2F9d4EFDAe961373276dEa8f0a",
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}