{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376897712",
    "entityType": "User",
    "nonce": "0xec96a044d8e1145d7ed9acd029cbaee3748d0d019a0d85fbb9ead33c45a9c16b",
    "signature": "0x351d3fc0c8191634ca812bb09a8525b088a6abe685625fb47f2edf674a43abbd705c93f1d3b25ce85e348621845745c1a8e2e1316aab9558d3de848fe6d1f3b11b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}