{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2549dd96c8002dbecef3824e7252936ea7b6aa85ebc507be4c02c366a1d26fc7",
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    "signer": "0x6eD110f7A10Dd04bCD6e34dD94B653b928fa59A9",
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  }
}