{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x42c3e32f434ab16c64380499c917bd3e9338c2f470e0d5278f2774d29de29ed3",
    "signature": "0x7f31b9a41e664518a86be35189223b55b8c13174555f30fea2e708e055fc7cc60ede657b69801c414930dfc916e088ef3295cbd7b28ad8b5306bf59b71857e651b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}