{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53389",
    "entityType": "User",
    "nonce": "0xb5bf6cb61647dfd4204c957e86df6cef4ee078b582dd6ffee825394d7d710727",
    "signature": "0xcbcbb445150357bf143fb08d9f5e6bafeb98b81f165c23b6dbd4e9b92012e0f75a71e2afd420b24f0fc2395a2b0fa41d45e6ef1d1c90557c3bc7bba6066e4b5b1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}