{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc17055a7642091e7534df7f6d2a65fb2223ca809ff0232ca978eefee7f4607a",
    "signature": "0xea596ead4196907b76e5a2a8565a3319a9155d89612dae788b950eb57af0c29657754f0bb1da36298d920e6021486b057393f31edd0737c51e29427d9e0f2d4a1b",
    "signer": "0x76dE45a900756BA990F6b4424a571d0442cF9Ddd",
    "userId": "944691071"
  }
}