{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68549",
    "entityType": "User",
    "nonce": "0xe7e4faebfd5c684437cb0b424b52de2601fb9674872fff75c047302a5235e451",
    "signature": "0xd17c2751d85e1b31098f520d1b9600691b239eaba246a581049e314e1af2436e6c24db5e3ba8ed3e2a4ccf06fad80016a2022a2eed1f99ce0e5f9d491001084f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}