{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397473",
    "entityType": "User",
    "nonce": "0xfe43bc9f5ec9050e3ea4e687a3fc2c4b94870a13bd5c8fe6e95f4737760b4e2b",
    "signature": "0x4f61874609c4023ef72598493ee474dade77fbbd40d497f1d47a80ef787ba7d0692514745622ac50b5607af318d0efc02f26d3cf13964caa1acb1b5ca5b4b31e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}