{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a136175ca5b4aa31a6591c99472c291f306183b6659794e88d9bdae6b1fbe57",
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    "signer": "0x0746ac63Fa7A7D0c953CC81Af73B6a193363946B",
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  }
}