{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x181e3742814667cf8682c88cccac0d12ddb969ecb8ed68edf9b6d9b381b1cc55",
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    "signer": "0xCa7cdC7D28D621f8e78105b8A9fC5a2752b42811",
    "userId": "958020941"
  }
}