{
  "manageEntity": {
    "action": "Save",
    "entityId": "244681779",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x73d76a517304d0d8e25f24bcb97ada0f3e4da2623e561700c9a6191195e9228f",
    "signature": "0x7aa3b81dc51495055f893be285960c40a0d3040ce74aaac584ab6ae1f0141c7949be8345890704f3e42cff22e7c77accbb860521f42143cb127f089fee8eecba1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}