{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27ceaacae73f538f3f69312a41cf1cd53d190820212bb026ec662b534432ce80",
    "signature": "0x170981d920eec3210fe0d120701b09666042efb31778b5828b745f67f8bdd5ab221cd93e71d7b7a4d556848d37fe722f7f3200a9731949562e3ed0eadab7b8b41b",
    "signer": "0x4B140b61EB41438Cda0Dd10473ad1334309C1b97",
    "userId": "45511108"
  }
}