{
  "manageEntity": {
    "action": "Save",
    "entityId": "1706744412",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5200073f71d5568a8d11d282a08d6df0ec8d40d8a466c03c80761d9c35edbac2",
    "signature": "0xf6b08d8021755a381ddcf6ff05ef07308301c3ccd4d9597409e49797e013bbeb15484a6d1c4b4c74afceacd983e5f06e39bc38fb9ed6a6c6db6282dcbb5acf161c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}