{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1a32e027461ca7967aca339d7a2894be5a12f8ad56c35ae77119c0373b1ec2a0",
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    "signer": "0xEd451C4DE41a4D96a1bB2813c48B0be0DEe82fE9",
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}