{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x427848e3973225a49e7d6387884674d093d3b0358b139645dc6aff12bd8ee1d3",
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    "signer": "0x24295a85340dbc47B5776Ee15ddccF63B26F3F22",
    "userId": "948276435"
  }
}