{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "177",
    "entityType": "User",
    "nonce": "0x2eba2871461e23fe75362a52a0fd1535b8b5044bdbeb4fcb036b3cb5a2b98603",
    "signature": "0xea811769167ce8fa21fef8cc470f4c76744b36a104bd32baf814506ef92b4d6c2181ac62c07fe9a2930737c51881ab19595611d28506bb472cfc6785f40097d61b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}