{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983207232",
    "entityType": "User",
    "nonce": "0x2a3ea0d0edb2d4c648578389bed5c3825a2c4d75fa61dee525666af4b3524998",
    "signature": "0xf2bb74966e79404ff25bd7b02e41ddb86e06737d03937c476a12c482b408fc4c1d804392c733e618b17eab5d41678000b31ba5cfe002ca7a17a45ceb2cb31fa71b",
    "signer": "0x61aC959C6029A2Cba66cD6B9AD35c9d7120DC52c",
    "userId": "313708333"
  }
}