{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbfb746f026ab305ec89017fbb47f6413d218828204caed058d0527c50167b214",
    "signature": "0x9f92e0d96e180041309929f7aa8344b9e0dc149330069a575f265083f310caf47b0e4fa495ba906c2f2156c82ba28ca4e31dc8ffdbb0abf29e336360f7f238c11c",
    "signer": "0xb9B7f2604D3c2a6F73Aeac6Ab8F469905C8A6394",
    "userId": "146465760"
  }
}