{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6e8f20a282cfeb859c6f3b878f0386609878803261e8104edd6528cd9cda52b4",
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    "signer": "0x6f14c0B3a4c40A95BF7421F00865288cBe502808",
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}