{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x7f4cf517ec265e1a3e4958c6241dbd2cd8f9d961886ce8d36a1f4627af9adba0",
    "signature": "0x73d2a7b2ce3543c7c7a437d9ec9fa09d2d14a0caccc151b0ca195afb0c4698ca6d0f9aca818e455728043ceb352739847476f2d0a393a7b91f713306812274ee1b",
    "signer": "0x2E09706d061Da2bB66d01F583c734E89CFCd23D1",
    "userId": "14811"
  }
}