{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183200",
    "entityType": "User",
    "nonce": "0x68b2f784672679a8083d8fbbdb6439f61a5fb1ddb26f0341b8b073e69e21d360",
    "signature": "0x48aae218ebe277388eb8941773133b04715f737441c7f058d7a8eccd22fceff709c4d615b417df80b313537e3e5f2996a7eb690adeebd31a4a5b6a9eb0f147e81c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}