{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x40edba8ab27f01a2cdb99093c8fb27055c0ddbc778421c00f9f265279368bbe7",
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}