{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x74938d003a333e8b7feb3621c444f71bd903cda5bc9ca7874b4f83d454d824b0",
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    "signer": "0x24b2B119Ac8F66267e87ACBBc55e19565457F9d9",
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}