{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37158",
    "entityType": "User",
    "nonce": "0xefa165764b359689e9f7b12ac815fb130df661711090a210e4128e63c7d4c8c7",
    "signature": "0x2b4b8a4451447d75f4417ddaefbdef86c9746a88e56be44af01c74e4e0a5a3cc2f7edd16de5f5d8f10c29e88be580a9aae836bbcd7c872f6e8b8b51c9e1aa05f1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}