{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe64cca143842b3ac4e917e10637e56a1b2caf8d2db1ea900501c1c04916e43c2",
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    "signer": "0xe56da5Fb5AAF30449E9e91827cc7A25B4EA876C0",
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}