{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x88e077b5d97ce51516611ae65e0287fd930273192b58c8869d061d3a8a159b01",
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    "signer": "0x34dE932aEC58A7319056c1A9328F0A25bAa895cC",
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}