{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0x6bb47ddce704a7356a515f27cb20b6f04a6f1389eab49c8ea934902bbf628c52",
    "signature": "0x6829c59b8b386b0aca7366a0dba04e2b75c06d9e951959bbd336d3ecb25a1c017e88d27a5a5631318ea13d50a6235988d95ed5c99f57578b60fd0673e766f89d1c",
    "signer": "0x2f890F488c7DE6221893B82B90bea73E2304cE3E",
    "userId": "344578316"
  }
}