{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1f820d252fdb6d03e048291d2a73c4fdef38f60c2169bee0a182b6213ac0a712",
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    "signer": "0x55D84A87CeB13f281C00aa8c047d3FCA1e80eB4A",
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  }
}