{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe4cfc549554536148603fd1a22ca008d1f9ef939dadb6f3679252765c227a855",
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    "signer": "0x5E525e13F169B08B94891FdbC996D3fF2740E9E9",
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}