{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa77cfb678dc6809338b6e624eba4c4446750789f26099d763c3bfdf3617c1fd6",
    "signature": "0xf5dc993d485b4401c230a2723fc45cc6522ebca7c6e9b2620034fec5bc0a29997c819ddd87282b02a7814de273ff735ac625cfe03fc73dfab0f803a9c1788acd1b",
    "signer": "0xAdbca03dBaC99da7bed023EBBE89568b33744Df8",
    "userId": "842968337"
  }
}