{
  "manageEntity": {
    "action": "Save",
    "entityId": "1706820977",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd4155919084c3da2027364d893aa37d23ee80c7fdda4234729e83355671c361b",
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    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}