{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "284000",
    "entityType": "User",
    "nonce": "0x2400a73e3606c9f14ae8278f57befcf20be84fcd312e47fc0dbd05c6d54ead69",
    "signature": "0x11a4dafdc766fcaafd5f184eab5f1157657799073fd736afec49c3cd83a1356c2872b43d3ad6652fa59c1741c0062b0f0668c840ad934c88849a059312af8c671b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}