{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xf7c94a3736f06098709d78f369f4bd4e7787a42ef72664903a83d7b0787da224",
    "signature": "0x05b681441ff4ab96a1c35d29eda51855cd5516bab22859844a2683ef0ec533f92d660bf08dfbdd1b5a17ba439c4d8356db265099cf50b4b288eb133500b814741c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}