{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x72baca3016c3524e0d9dc5ce1eb976fff0d313e3ae83e19c52554a10656e215a",
    "signature": "0x0950be01bc39519b01c9ca4b215dc9916c50ef2736b25906bee06cee99eb0bd44723be5b3f4923fb78847f94b9aeb56ceedf1ad2c19b5faa7671790d2a2788a91b",
    "signer": "0xAfDb4A2d4Aa9040087dadeDA27AB759e9133C3bE",
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  }
}