{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc9c63b397dfff6087d544b5e8d7ddaff4f76e59ee195557faf80e22ef5c62876",
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    "signer": "0x90A9206Df4cA22A1ad24bfB7F1b639Aaa812Ac58",
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}