{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601939963",
    "entityType": "User",
    "nonce": "0x3f9c10e0bb9d94d5dd0085b8a14dbdcbeb99b6c6941282bf67f62eab18376ab6",
    "signature": "0x3705748c795c5645a3fd285720b70289d830f2284e8d4c571e24461c3dcacdf7602eb2f362044da6bf8bf59182e63716218eae407a3ff32329eed6e8ea43cffd1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}