{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2715",
    "entityType": "User",
    "nonce": "0x81e02ae2afc4194caa317afd5e50ddc3f557988bb7d85b7af1a42b76ad3f07b6",
    "signature": "0x8d8758583f40292ba33685e257137f0c5cb826ab44640645b18991953ce3dd0b60c5e34cff40bb04a8b3d53f8349ef2168552ca2de4b910be75e1f154de7d23a1b",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}