{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139144",
    "entityType": "User",
    "nonce": "0x34fd374bd0d6ef1c0a418db431c8f1f3a9db878f55847716fb1e4d501f546946",
    "signature": "0x7a5562de18c7e93ac4e67c5d686582debbb74a5346d11541eef740f90d6da91b4f8e1a3e5dc2e138e84cfdf3c7dd2717e303af3377438312aea9a98bb04b7ec21b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}