{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb4c1c8c02a7ea1d8d10bfad950c0d853c7d3a5310cbaeed32f682cc649f29aad",
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    "signer": "0x8EbB0297003F8F79082fee75F2Ab935eED775B56",
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  }
}