{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6b6c3d35ebe9961aaf1044e19d713e7e525bdf4496c1dc9d3bd0f5997780868a",
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    "signer": "0xd3De8f71FE55763e42be9E27D8C647688fec3d55",
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  }
}