{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e886f38de9e3a00b76109f5d0789c7467b97b74ce35cca8de6e2e1c02fee747",
    "signature": "0x0ebba0a41828321bce635747c1a7ac6ffd72c0e4aa5c12f855abed6cf59d0cc7228d4795dc15c3944f184cd28e64246c7804374dddabb8b67630a7254a2507061b",
    "signer": "0x7153827aB581A5a4289E37ff776a53d3E839Bff0",
    "userId": "937198665"
  }
}