{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x11514dcabad184347ccbe3712e3b6defa5f8100481e9e4db52adc11f7cde438b",
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    "signer": "0x036A0606fb0DaDFB181c70B49a2bA0D1b179615c",
    "userId": "793829649"
  }
}