{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73771",
    "entityType": "User",
    "nonce": "0x084113ba849f481acad55b4f59174456dfde9423a5730e8a5d29ee0757fd19ec",
    "signature": "0x8406dc086f137bd7cadf4d36ca0e66c0e1da16bd20bc172200733a303a96df5e2b8e93a1c2748e4bc975ffe693f496e5faf2bfa0b0cc55e99cfcc3cdbab91d2c1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}