{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115138",
    "entityType": "User",
    "nonce": "0x7cb964bd2eb7740c3774a5c73f79b53bc013823f3d2165f4be407776df2ab661",
    "signature": "0x0d0fe75b1f76813205888613763c417264ff4adaca7579e99f30a57329b2eda6789feee97f2475a6a1ef8deb567063e107c928d40bb2ea3a85d4a76c0fde48901b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}