{
  "manageEntity": {
    "action": "Save",
    "entityId": "1459873244",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0821c28b8f8a3361c7358514d1182f2fd9283851bb4223b056f08d56c6c9d50e",
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    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
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}