{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x46dc868be4ff102dda24d1f71515e27f6c67e2b297ec97c1796d05a08ab84341",
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    "signer": "0x9CFcF2f710385920568Ea0aFd6E461Adb7F0026f",
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}