{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0xe433c7d8aaab3bb7694c667bdecda0d4c04c5bdd1093b1b980ef60a21513abff",
    "signature": "0xae642632ebb389301658848ef8dcfb04af8603f621d887c619c0a0894bc7c71620365da171ee5fc12d44e0301ed72b024ac5c06324fc491d69ae1fc7613f48bd1b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}