{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x8543e34311b0cb8fb4196fd3c06d8a5316e687fcd581ad98bbe3fc80c327e217",
    "signature": "0x4807c181a85fa3bffab1e2c224304b24349d3cfa7b66c0ae360177a68b9f7589219fcfb1955cd3fc4ab99456129f383c775a575f833f30c9e58e83a05b8ecdd51c",
    "signer": "0x2E09706d061Da2bB66d01F583c734E89CFCd23D1",
    "userId": "14811"
  }
}