{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1708968",
    "entityType": "User",
    "nonce": "0x94f7862368675fb907b49f4fbd2d1fefb7ddd3a81b62bb03b812061b9e9965f0",
    "signature": "0x406c048551a4f0e186c288cf6ceebb5f6da1412fb3afb41f97578a6c9509802537f84d54766f3f06170fe9a59a3a70dc823f9bbd21e5d0f74f34a6a359512e151b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}