{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x25e2ff37a80368f4d33b01aebecf667f6e8aa951275ca4da34d8354a04af5f1a",
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    "signer": "0x269A809B5802e32d52aa6593B265609f0FC4A751",
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  }
}