{
  "manageEntity": {
    "action": "Save",
    "entityId": "1081644738",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x16b57de44e14144844e18c25fb4c01b6586b173576ec49aa22cb406c7aa2c419",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}