{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74427",
    "entityType": "User",
    "nonce": "0x6b784bed448f61eeef9e6a16c6fd89b9ed6550e696c7e67cdccb8cec08e68b74",
    "signature": "0x47fd44e98d0729bb83bceffd29b2c1872c7fbc2ad03d492f4be3e35658653b6327a7d1c7ec9ee4721c19a1fc704bd1370016f964e6b45c5dace69eab89bcfc4f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}