{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4703f793a3b3515362b549d8a6fe0c45c9423ea41401e3a4a37fe614289db50c",
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    "signer": "0x65fec925B45Eedd889b013849758c86FfEB36cF2",
    "userId": "582613534"
  }
}