{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x03036228428e5438687d9cc4307100ea44fc6e0ec74467e8c3e81d8b753c0160",
    "signature": "0x9b624119216f7d8331d0ed4e5eaa8dbea791ef857af0c1189810b465dddfc7dc3f8fdca288ca97858df8683cfdd34b312ea39e92b74f2190d0a18f0ebbfdbbc01b",
    "signer": "0x3E558756cd81C80f87806F4736866607a219C009",
    "userId": "265918903"
  }
}