{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xccb89040245b5ae3135312f08bd28a7121fbb626003ae2f62e63f2e43735fea1",
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    "signer": "0x02Aff1eA35109189Cb2cD22bCa09A69bE6395397",
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}