{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274152",
    "entityType": "User",
    "nonce": "0x46574271ba4f73c138a4a462c45ad9a52d0c2a1b25fa82433b174bdb5b4ae597",
    "signature": "0xeb91a6c34bdceca0b492c9880f2c7d45a6ef252637c3a12511ce8aa91136579052041c31347262b49e549874a946e284ae8b7c9011af99851a4dc419ec55aff01c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}