{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120157063",
    "entityType": "User",
    "nonce": "0x074dfe1035c83b7b9928d6e0d92254cff55d375f7d7d0a6c8b32eaacf07bc173",
    "signature": "0x1e144f9c523710d8f369b1b93f0327eddccb59d2476173ca5e4953bdb94ff0512a13632e2b9d48d0eadce75ce83c25ec94d891f14b9c3a9592e613f7f48af6dc1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}