{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1bedc95d3232d68895d65207cd67b5cfb71d2e1b348823d16be7b10a392f2c71",
    "signature": "0x257d140911567df40d0755c5f2afb8bf8191834cc3d09374758299ea87638dfd5bf049498a06175168323189c49965e25fcdd1f24bbaeaf92cadfef9377eb6841c",
    "signer": "0xE171De63f1F84b0f4C5662B6a78aA75a47c5292F",
    "userId": "741316550"
  }
}