{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0x5eaa49d4648e6282ff8167af60eed646eb010e90ff836be1067d854ab9e6a50a",
    "signature": "0x796cd21afc12835cf8cd6b513df81b56b790e788b203779fae65836e246d25133b40755598be1b5390d4ecf1bf488da8438fdaee765dfdb0ba1bf408cdf1e8141b",
    "signer": "0xe6694Cd4e9B035f05AfC0e12202adfeECa1Df55B",
    "userId": "473091022"
  }
}