{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0xc0d6d86362876a2a5490b813b625b054222d94ea0ec6ee55e011513a2bbefe6c",
    "signature": "0x4b09a2b1e7778361c93cb55c27f3a9367ae5c4005bbf895d5309ead5b270358e7134ab6177ff5c24dba46ba648f1f0ad46db61ad2adae1ac603f14b69720b2231c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}