{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a6a4ff6accf91b02be7ed71a55a89e7ecb40383bc799cccde08938bb8ff5ff5",
    "signature": "0x239419c00d36b754cc27ba80b3b4dc8e2e057374df06c3effcda4cf824512f9a54282230e455cd137f4cd0e05a909dbd8793ce2a11854efe7feb31d69213ebf71c",
    "signer": "0x28B95af038ACb6815848Db6776e96EcF8F17a27d",
    "userId": "605775157"
  }
}