{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128387",
    "entityType": "User",
    "nonce": "0xb35aa45ea27711adbe9eebdd9649200d1f1f99c4f9a26c228a440de13d9bbb8d",
    "signature": "0x3c88450e14524680a52771a0e2e7d8a6cb15c34ac8c7ef0404f002d8e70dacf32102045d9085e46dc957ceda8f4187cef58cf1678c91b4da7ebc5cf5199591781c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}