{
  "manageEntity": {
    "action": "Save",
    "entityId": "32958",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcef463e2accdf1ee718b278778a79a6982e9c475eb71a95df885d75bcb3ddad9",
    "signature": "0x044b17730e090c8115f32885f300630387228932899b90f8ed5b91eda14d57de369ae7fb835572d6cb32f99df8ff522d37bdb19fc5121ab129c33c520d9b9a521c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}