{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe31cea3ed5a722e3cdcb42975ed6b8dab1d8651fd29b22826786916824f3239b",
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    "signer": "0x932fB57145D18a35DAF164Ac38b6968F8c0f986b",
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}