{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0ff0f7707c413d9dcce1a7c235ba589d06c389f8098ffd09239ae4449e1e11e1",
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    "signer": "0x5865Afd791ac0d57a0f9e8Fa840D23CF3be86932",
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  }
}