{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2ffae93cd507184fd2934d1664e2b47b4432d4241e62ff3284f751f24f968e70",
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    "signer": "0xbF4b0f08cE2d464Eb74055fd0f160BfAF96E2787",
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  }
}