{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb7fd1dd258031d1ac7c0bebc8ce3df4f72dc9e4ba13737ba8bfbac4a102e4c7",
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    "signer": "0x68C5055FBaf60dA4F12097A1D2DEd717450F7330",
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  }
}