{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120305",
    "entityType": "User",
    "nonce": "0x163a52e27abc5c3f8ee55fdc72f25d638477b8e59ba8ff3ea5ee1e6802f67a90",
    "signature": "0x7968802f912827a21840944cf7f1292af314807bac7921b703c0a66a5ee647da066e98ada21abf8b5ddb8961a67de005a139e081b115816717d22205105aa8b31c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}