{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xf87d76f270ca10da9e8014bb223836d75c6fa410f8ff7e569d5f2e3201472bd9",
    "signature": "0x71561dee01834109591eb6a6904b0a9bac3150f8fd96c52fb5cb31bf438268554b42abb6b33747c9d7623452f8664aa886c6f82f0fac95507b1305fb8930fe841b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}