{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x7000af4bb59ed9ed14ae7eb7c8818b0648c93b266ec5af856850007044cc07e5",
    "signature": "0xef002682f62b167caec64c8090724482f3d421cc85cfcb6519e956236f66d8cb185c4e1b29e986c0ab421910df610fdaec8b2ed7052c2fcfd0eee0859feff6161c",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}