{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301347",
    "entityType": "User",
    "nonce": "0xddb0d36ae54173b847fcc24290d17431c73a67917eedf1c8dcec7d51150d90a3",
    "signature": "0x084e07c4f0e86b502fb2f3a99de4dec8a7fb1f7fc07c74fc768240deb8a65b3961a46e434c8037542e1467d59d20696149cabd9affc93ec38b844b9af4757bd61c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}