{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6b36a3bb1e2f146ee93134a39e95cc7d40ecfeb6ee3fcf8ba7d2043cb5eb7055",
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    "signer": "0x734C2A225B77Ea74fB232211f2c7FD4Da7e0FF75",
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  }
}