{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x74e47925413fadf24c71ffa35cdbd649fd8c623e6998fd7dac9c1db455211bc9",
    "signature": "0x0e172b59e96f29a5fe14a78d0ba14aa2a715441ae15f6c329e44346655f2b0f33ff1039b750e55e8d5ffc00cfa85e5f8b3caec31fbfa13f08c27d7979c82663a1c",
    "signer": "0x560CF638EEa19774538D453cC9eC0745a7C66556",
    "userId": "242603075"
  }
}