{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a011f9db8b7459f8e849c589c983831259f3efff0e020cca11645d4be888323",
    "signature": "0x8a486a269fad7bce6cf6983f1da02ec4ec7edf4817bfd6557c4bb5217404567b6882593ade9ffa4c03d9845824e32ef63d4761356dd5cd708bf3976f9819ed2f1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}