{
  "manageEntity": {
    "action": "Save",
    "entityId": "2033875771",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x33addd683e64e597ed2f7608aaca33d6d42f06e201e0ece8fb8ce8cb4ba2b924",
    "signature": "0x4d050ea5e55f64e4f6cd1292ae6b2d8b506e2646b377b0f84aef98d6b3f068b615937502a730ca43e18b6ec26509eb2aadf61d287ae7aa20c5c42e7f71f8daaf1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}