{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8e6a8ed2a0d4aace529006d07208e3f07e4b409bbdbc76e22e103f1489aa85ab",
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    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
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  }
}