{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125856948",
    "entityType": "User",
    "nonce": "0x9f3ef7212cde2ef3408bbefc7d72782cc9a57e4b30907e468856d1b1ce3e2341",
    "signature": "0x43bf02c45847da7fd5c360b69d58312ed6309aed7bf3dfcb7dde140c570f13870f9ee4ccb9d71ff9a9b86771f5c7681494f10d621d0d2991eb7cd95b6e58770b1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}