{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139721",
    "entityType": "User",
    "nonce": "0xa104a49ffb87f0af2d8ae820ccd09b6e073ddaeab73df5d3b6432d1f4d9b5222",
    "signature": "0x361bfbb283cb623a25a4ddb6124bf2949f1f81b7078191155c43cb7755e2aaba56ace73ceb214506b8815c837369246141ecfb75cd9a82083a2898a1cb0d1de91c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}