{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2d3770cecd2e79791e8498d0a4a4408644253fee95f79ba718a899072a7d6790",
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    "signer": "0x4f689EDE6658999E10a3594f86846Bc310879628",
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  }
}