{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194819663",
    "entityType": "User",
    "nonce": "0xdba615c955fd871b6757d27ad8e2852e97f030cf232e1742746b5073eb0e44e5",
    "signature": "0x6b3213a2c0261aabec99642c8709e0ab7aa310747f7d81a9d659141b2bb4fa4d1ed634bf784ba92a5d2c8aa62e75dbe5c300727c6e1859ba39e25f5d5a502cbd1b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}