{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xf4cf02daebc832d15b5133f50d81642d2216b90354695c19a0c67d7d7566a6f1",
    "signature": "0xb1b5af0f95acdd5da90e7ca5829a05f60c59023573d84486c6f9a0d371718a4c4d00be887cfc85f38d108dc01abe5b8b47c5f474c81086dd9788464b3dc6606c1b",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}