{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7489ba5d8bd252486376d45e9f3267120a6c1f97ade1346b14fdee3e6309e55",
    "signature": "0xb757703e884eda285b5f65375532e77f177228de32bff946e14c98abfa7336bd4d882108507ccdfd3c5213724b17311726d2e772ee8240a7865c10aa2a2a98211b",
    "signer": "0xcC2DfC9031aF217be97F95f00c1F649a5c476af1",
    "userId": "885906546"
  }
}