{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbd6e6f53ea889b33d7906413ada11920f83fbee6536df7412bf9588b32e0ede9",
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    "signer": "0x6A72813Fa8AA17b1147243997B76e8191475e74a",
    "userId": "958967279"
  }
}