{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa6f31a1d7a6f66aad259648e94c44863037c63e5bff170d03577108528fb9cd8",
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    "signer": "0xec5B6374874eE26bb4E0a4931a60842B7A2a968F",
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}