{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xceb7ec69b351c1b000e42db3b78a031df8ccd9e75b9cf482c39779f0abdd8123",
    "signature": "0x9cf254e5919f5596ea5bcb90a2f62eed69143ead4c3b815fa94625f3150cf03a709eacba6e68d7eafbb2f63261021d00f51bc1ef7d637c139835606ff61885411b",
    "signer": "0xeA53696a754841Ae9bcfd102450d7859aB95681A",
    "userId": "417395903"
  }
}