{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x0ed63b9a682cac7e35aba7abf971c60f983287a5c0a818fd7103300d43c88fa2",
    "signature": "0x201b1abd2422fa9da0bda3e0f8d6ca2df2f08ea7d169f1d3f39c390d7fbd50c4788b7bd87b5130db3c2e4f6206e3d6b0a796cea84c2eb81483ae968f043fad571c",
    "signer": "0xF00da71d697794A82B3ce77129Ea59608d6A7B1c",
    "userId": "398231271"
  }
}