{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27731",
    "entityType": "User",
    "nonce": "0x5b1f21ac72d66cbbc23e98ba159576c46f3f2ebe2afb58dc094681f2731613e5",
    "signature": "0x125c326f78f0354df29bea2d549c1de72702dbe0a5f657e9f5bf13ae5a1651557c9ce611f41127d045b6294952688bdc9b2f3fc40b573f8c5290fac1350062071c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}