{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfde643ba34c38cab5aeceed8a8cc15d138f7cdc2856a5f32a32296b2d5407982",
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    "signer": "0xb87fFF581cC87c41f5760cBc657a96Fa1C7673E3",
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  }
}