{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x5d8a47a50bcfeee66a892ecd5735299aceb478cc5f26d938b6409f5c5363a3ef",
    "signature": "0x35d40134822b2fdb5b15a399826e770f00a54d40209764905fc256fbafa6ccdf6d474f0f710b308cdaa8b149ece166de3cee0eb6799cc1ea9264f403b4ea25691b",
    "signer": "0x4Aa8154A33F33394BA8De574d71aC98Ba6A47D5a",
    "userId": "645720561"
  }
}