{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x945d808372ea7ae3d9ad5ccf29f1cf03bcfbc2a120315aff48b52403056cfe1a",
    "signature": "0x30c0647ddc531ba0c38392b20e5d264c59d42f90a9b83262aef4911bea8b976b3624a194bc6770acedf04f9d053d0225111f1954e167ac65c604aa87b781b0291c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}