{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "439513707",
    "entityType": "User",
    "nonce": "0x6d46c97b8887fd28e4b72c6b0f0f203b63874b293eef8758a2b13d9942c1de15",
    "signature": "0x79012a0e328f12effa2394b780411ff57dc746f75295839bd95d886bf3663e1074244325effc7b3d885d19ab5e16875b3fce169e9301287498d637b372e9bd421b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}