{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xec5f238991a6bac74ade657292cdacec25c513ef80f3207cc1a5d6d8096e649e",
    "signature": "0xe558b92cb9a504dd51d58ee903bd52483e0bf546c7269fe2619f7bacc588863031e8d9dab35a80aa9c937ad69ec009bd3c859a679bf8317f812aeeb33f6585fe1c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}