{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6795798e3b5aa3d9f24b7184e68742084c17532e793105377abfc3f1cc3def0f",
    "signature": "0x1b39d8bba51d9603d634363a2b7e4b3977e685bbdf668d685d07c49dcabbf69f6fe17829383814c46bba0c0b053b559ceb1d288d65beb65e0aeb5db112b81e121b",
    "signer": "0xA23626aAe051e6B50D4F61dA8F5d0B222868C9aE",
    "userId": "30169752"
  }
}