{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8b4b994b883dd2ac18f352e2814aabbf16696f73eaaf76c9ee855b4a2fdb3320",
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    "signer": "0xf0CB0bE09587831c3cC7689f3e01De1457073033",
    "userId": "743836779"
  }
}