{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x41cb7e7e3489c30104261f81a61d0553f185dd4e1e6a20c521e2b59c3802e919",
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    "signer": "0x79adD0a2Da0445bdf4Fe4a9d04995B4a8354606d",
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}