{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdd567e53d6686c1ab1422f2c098af925bc369d842876c9c20a7f49dc5347fa9d",
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    "signer": "0x56fA9E296e4bDA512Af78Bc4E510059eA95795aA",
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  }
}