{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9af70f9d4230d483d13c728245db0e6dd24bb20ac13cab5654c6d7e30e13436c",
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    "signer": "0x89d83Bb2BF0C1Ad6B0dB1DE16DA35a110Ae37a6C",
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}