{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ba3edc4b4f7bf3cbf8975aeb488ddd822d75d66eaf39c19fc046d1c3e629bf2",
    "signature": "0x6cc2620a24bf15d026bd68480e40c5a21a648b8bf72f75905709df60c94306c037a18de11fc02f901f0e041cf2520c483bbbd1bf49791602b9825418d65843f51b",
    "signer": "0x1f925fF626328Bd4266D3a6B32aA9bFD7d50435e",
    "userId": "91534297"
  }
}