{
  "manageEntity": {
    "action": "Save",
    "entityId": "1797385532",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xece0ef7ee85f26a28405db5e00a4dfd7478656ecc2678f1e6fad956349a539ad",
    "signature": "0xb3c425155ff01a01d796cb4858edc1d2efe8eef2900e49a16b97347bb3ff500206efdbd48d0e25a8da309021e26a6d4919eae214e71558b19fc92c54741cd1141b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}