{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333763354",
    "entityType": "User",
    "nonce": "0xcfad62538722be98950dc7c32cb4065c1ba0b2c7d7502e849de5806208df272b",
    "signature": "0x7b4ff579c724607f72db4303dbc6a406517e9bb38c8e73e223069d463df6cad77118e54048b6f0cc751056862ca348c9818811b1f8ed1ea0fd5ff9a3e26903e01c",
    "signer": "0x5458796027aD8A259861E2C65ECFD1B027e9E8fA",
    "userId": "42614"
  }
}