{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "493802",
    "entityType": "User",
    "nonce": "0x1899809a885127807b4d451ab5c5fa1e63d1aca547cd1b79957621c62a7b8673",
    "signature": "0xe03db54f879dd779ad579b47237dfdf866da198f0440660c4be617c6fbb408530bfdced4296486b95c85bf3b48cde113c5e4e992993f805c986151a9ddad0ef21c",
    "signer": "0x480308482b6aDaE204F44FFE610e168EDdaC4d45",
    "userId": "861860640"
  }
}