{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x11d4202f83da4f779a9365776c406c5ff47a00450fbdf593cbdaf58309446de5",
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    "signer": "0x08e3B5f9ae3588211a60D2888b5aAEB60cCcBD0f",
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}