{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387358",
    "entityType": "User",
    "nonce": "0x899c45f583e0999dbe7f130a17beb3db86599d1996cea810cde2ba6350cc427f",
    "signature": "0xd513980d9ff9a0b6c83fb3b967a12ecdf20f6a8134bb81d5c465d727c626e8f751e2a1b12cb62a608117591f48c132ca3b6bef4add3dcfe918e91f975846dbab1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}