{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4639eb5d223e2c65eef6f1500806bdb7e9f42f104cea58fecc12397cbe1d1991",
    "signature": "0xe85dbeb6408af24af4f93b109856b013d951e80bd251ba92a6681bcd6056005804686e41af8f11252168399ff486a21b53b391b4b3cf0ee5edd4c92867dafa591c",
    "signer": "0x526E3F862650aBDD378661a02a8e67c4F92B9aC0",
    "userId": "483443932"
  }
}