{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3848",
    "entityType": "User",
    "nonce": "0xf1b6ef17f62aafb6edea64b3112fd3451beec55580f4c42e603fc193d3af88f0",
    "signature": "0xc0dbccaf40b02bd42171cb908ab6e13d25fca795f84fa78e2e9914b8e8e3e3311a84aef79c8b20f0fb7efbd915ffcaafa63b073395fe81e5b0da55b2f43722bb1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}