{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7e65ba64f4c524c4bd8cac0c70672e3f5394c307eb8c8e8d509953f7f8ee2d93",
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    "signer": "0x8D20850ea14B1793353e393795cA05123f1AB383",
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  }
}