{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1e9163225884f8268615eee1d4549c0f6208ceb327ac86683deda3bdb49dcc5b",
    "signature": "0xf8c52b43984477977b9a7cd902385d525a2c2754db71a1f83203a3498015cb5f3fb00fcf3934c998a43ad0ef62714466c95e78e28977e6f772f524e730fe28911c",
    "signer": "0x52e6cE7A2a4Adfb27641123E758939eEf2f3284E",
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  }
}