{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "420620027",
    "entityType": "User",
    "nonce": "0x6f3903b9e65098b56ced94b2a5b683e397ec05e8d45321a296b9c7ce51399abd",
    "signature": "0xae0d632b7cb8a0d403c7dfc978d80101666a217220541460b5c3d79ae683059b758ac1f8f3c04d4957bac0fb0a1417259f9510262ef5e5e9adc16b7e8ba1f7c41b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}