{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f9ea205afd655039468a67b9d4bb00c7198e99b664386691226c09bac055e33",
    "signature": "0x43589cdd0a9b75b1cc0ae79883ab738437a3c90d88f4c3736d4cfcf1ed6b411773eb796bb81a4f7ed05692d139634aeba616a9e924d818eb5f6d935fb787c9fc1b",
    "signer": "0x09359D349a3BF3C23fB98bF8cb96feb3D6cde136",
    "userId": "145058202"
  }
}