{
  "manageEntity": {
    "action": "Save",
    "entityId": "443077644",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc85b9bed44823f6946490771765632243a494ffd0221c753bac7a947659b51af",
    "signature": "0x77111b5404d72097f04af19d5f0273e7b8ae1f40e6ac62aaa2bf4b23d09b834e6f1bb68e90c359d5b7818447c768e90a5cece3984c401494db0708e8b64ea2271c",
    "signer": "0xBA0a48Bc17b60E3B69cf289C0119c3ee5Ab93954",
    "userId": "715553155"
  }
}