{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x735fa6362baf166d001a6924b739a0f245c785334e0eb9146f591439a0e00114",
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    "signer": "0x26Fe8f7CB08633fD2a530F1E5d905BF21cD7C6C6",
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}