{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa62d2b2a3c72b82f652b6beee2f03ab4d907d3a0cf9ad2ddd3a91cc4307e3723",
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    "signer": "0x0c3c7204062958afAcBc12B1E07fF62f7006A000",
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}