{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50d1001f8b4ba8b0fd80931c3e59843ac3266a7de6942a25d5774894a250611c",
    "signature": "0x541944769431e9e271f4a9d355b5f809a2e041542653c3fedb52405f5fe36e6804613912421b8d2a3dd9e964c2192245040afae629c3254c6eaad77032517dd01c",
    "signer": "0x09F526D9F3fd00CAFaCBc826F871Acc14B901962",
    "userId": "226783633"
  }
}