{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319458",
    "entityType": "User",
    "nonce": "0x0f7d19bccce1816633a6290ff67b87192cbb0197a407d50bf78a8f8375fb3c59",
    "signature": "0x5c2083d08a50b600e1ae4ac958e52cc7ef5c1f2c5d44350b5300c095e7c688347c5f667526a87e64932ebceaf8ca096d260e86d08485a832807485658a90b61f1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}