{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x15d8760601eb9ed82d7fde4dc642d8f7f637afa0ec61bd4cc34a8fb76de4159b",
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    "signer": "0xe443035A663FD9bc2937156808C2f91B6029A96e",
    "userId": "877708088"
  }
}