{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd9ed268c859ac7a2654d202cfaea07d52364140b6440b21926a450cb0ab3d476",
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    "signer": "0x2455c699b34cC997819d2497D54065DaE8327e7B",
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}