{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xabb09f4167068bbbe8be14c570d3067f569ada769c1ba583d78a85180300244e",
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    "signer": "0x0a16ff54Eb914E641937363B59e02e40be83Eb39",
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}