{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319129",
    "entityType": "User",
    "nonce": "0xb4b2f7e34d89f7afc6f016830fe217e06545da012d6d2640f7cebee22c669ca8",
    "signature": "0xcf7778aa83d2a68dd8f2bcb713c8f6d21a2fbdee1bfc180c8353e5d883a6ea0d420140adbef7f3ceab457359e1cbf27088ddf477c27c8c0cd0d22614bdb4cb021c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}