{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1475185",
    "entityType": "User",
    "nonce": "0x0848827b39885a36365152bed94dd70a1f21d4200729304a2443206fa3631726",
    "signature": "0xcd394704b29376e956d2ed2484a308e4dc651484d277475205aa5213e9025b70195692915413e075e61da2238965e865b9b0e6cdc3fc1a81e74c7ac9970f3a131c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}