{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x6538b5877382c55573af1a46fb1f559f8a74db14c0be9746b98763c0d67bdd45",
    "signature": "0x555dc0ef8f8537e3027487f660abd1db7c59e4933a6eeaa48f441b87b43c8fd82491538413a334bbe3990a3f6fa16be542608e01c0675cefe042f967d904a36e1b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}