{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200218",
    "entityType": "User",
    "nonce": "0x4f0250f03d49d675d928b21b963009d3b1e2f78c253b70e376c1831fb3cd0b89",
    "signature": "0x370437d8a94426dcc310c69cefe3e74c67d685e557346a2c59a2764fc55aea2a762d99717de0df8d2361ab4590616becc608bea206903461bc05a86a15b7613a1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}