{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "962634039",
    "entityType": "User",
    "nonce": "0xc1e8542afe508ccee5b2bdb10d87e5f1f8f940b63fee192480c56ea20c51146f",
    "signature": "0x2fff6b8f7cc7ea99b41bb468b9ec641197997ba4e368147f72973e9d452f77ce39d0879d0c234054ece174a8c09eeee5175b84374264c33583d743f8f2e41a041c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}