{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892407125",
    "entityType": "User",
    "nonce": "0xacd900c7b79ffb8a541b6a197abaa38653a7b625468e1de3143bfbcb3906c0ef",
    "signature": "0x9567180ff7680f70cbf0d70cfb3bfa8c4bd966bfa33129a325f2b102071e3f0d6c2e8a20edc15b9226f74ab449cfdc06e64620b8ec7ca13d7681ddcda5fa1bbb1c",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}