{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf82ce48a67e9ad6b3bbab5d6420c9017dbc7e98dd6dd45a2a88374887acea94a",
    "signature": "0xeffcee112f703f9a8455052fe91cf0b0a8b8ed330ee9f6a2926e2bf4f3a097ac613aa0556d26c798f1be65d8da887a532a935ab6fcd8ff477bab298d27eda9af1b",
    "signer": "0xcc9e1E88B008675950B42831dBBAB89396f1d8c3",
    "userId": "373466917"
  }
}