{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6d289d70e22b8e5e30bc8e902902b80cc6866f3df0f84691dd84c8b2b28684bb",
    "signature": "0x62ba1ad7db84a9f2c5d6b498014e4665d92927eba581759021948d41c72b98bb316ad9c7633494d9320ae94cba35dba8f22300ec5efe8cc45baa5287145b9c851b",
    "signer": "0xadd245b15aD14312f93D5Bf1635351f4C0543048",
    "userId": "670156681"
  }
}