{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256479919",
    "entityType": "User",
    "nonce": "0xf94520fddbae0fa462acd22554fa55f09dcbfa8d1a498806ed988491445dd69b",
    "signature": "0x3d309ba79e748c8cb5c8667b5b20cedeb85245b022c9d8db937d8945a4a6a7ee4640f4bf1642bce4a3290416d730d7f69f29a6eb3b5a42ca20be9c29a8087f401b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}