{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8f2f51760e8a13ef6eca22d5abb7f739e2dacee295982a8544d1ea466500dcc3",
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    "signer": "0xD1EAb9B9a434D0CAeF0dB1c45681838f32F73f25",
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  }
}