{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61898",
    "entityType": "User",
    "nonce": "0x6be25adba18056ca69f1be2cef510283d43f20d7060edf8d8e7fc1b3631eb265",
    "signature": "0x4a73221c77d72f7b7326b0d346155967b6860b870138fe09f4cf7cc7c63721ec110a46e74132a5743f4199a01bbf2931f2cc00f86ca8762e0180497396782d261b",
    "signer": "0x44577d90A171E208f723dEEa39019067c9Dd87E8",
    "userId": "853591809"
  }
}