{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0430581a0653b7c75ba6acdf3bf665867d27f7ea171dcb33bbe48ee12f67993c",
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    "signer": "0x5FCc1F0438515241FDb18a12701ab1d5374C0892",
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}