{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1493",
    "entityType": "User",
    "nonce": "0x93a21b610ebaa264577ea4e4fc4a3e7cb089f45ee3870ef99e4a9f287ef159a2",
    "signature": "0x78039dc9dc661bb32c16c7d2ae1473ae34a1a49db8de5aff833074a88ed105ad610dc0353b95971887b790516d9ad85cf75fd390af84af565bd146b29cb1c9241c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}