{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326101",
    "entityType": "User",
    "nonce": "0x717bab7edd8254b19761f40ceb305ab70322b3c5b3d2ce91a64737df8661063b",
    "signature": "0xee4b16bdc219b7bd66dfb94f2013b2dbb7943c78142f8d633194a968833c55947f6c14f702e9b5331410ad51b9f178cc66a9a2afba9be9909f8894990affd9e91c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}