{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x65e6e4483771114016d8781c9fa5a372a36c968a1f2aa39b79cb8fec072e94a5",
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    "signer": "0x1f14fF6c245081DAEBc25bA0c5c8f4A0C40fbAb8",
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  }
}