{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x46756b0194f239807f763e07cae43f0b5c8be3835fc57f221b6a3cb55b371e41",
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    "signer": "0x47876366ACBb20DaAC408C422AE6f75Af3969470",
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}