{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77901",
    "entityType": "User",
    "nonce": "0x9e12ac47b59a6a259a6744a76e6708fbc5b5a657414d1f36e675ea7614cf615f",
    "signature": "0xf5f6df86a95ba01b4d002a049fba59b22f920f732b2e36ef5ce98fd098bb2297237972b286fb7da6dc12b2dd9ffd4eb59395a16fa7ac5ccef81ab0963b4355fa1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}