{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x0d82f0ebbdc3f38ddacfe0cda30adfacf4a6e1657890c45b38fa93fb397e2c91",
    "signature": "0xbb55e5daa696a0648f1ec88506a9564e5a49963f265b8628da16ac69264041583ddfb03cc0161b9c00236116ed1ee7776086595792a837aa0d32419f75627f3e1b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}