{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4f24147dfbffc91a767b43786192b2a0bfc2b8f2aff2ab72c6e2f3567edccd46",
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    "signer": "0xdA3ea435aD361EC5c1a019FC11B0e0896A3E3CB9",
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  }
}