{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xccce603ecadaa97bcc7ed650f3f3ee2291243ffc455dac06b9c54e29ddbdb028",
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    "signer": "0x682672e68d8A09C926D8a93F5ffa96EaE999A9d5",
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  }
}