{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x244c83650caf103a2ceb94fe0c2ea03abac661acdcdbd158d61bfc3c0527d4c8",
    "signature": "0xdbcb99c0d54a88f3bb8019838d661aab727c2f623a9a67fc0977d42cb9a2be655048673ef530e1f5d84d6b6b8d8427696fc7d12eca160d3c1b09669fbb617d0f1b",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}