{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317",
    "entityType": "User",
    "nonce": "0x8bb8c6a2bceec9acaec53237e9f3d468079c2f68e81676b6f8c889638159d340",
    "signature": "0x68e73e64ed6de9cd927c4e6be30fdad8c1c9d472a35a993fb11d5ae74f304c727d8460b66eacf2a14ca48b7d99696fb1431b086c57458406682af892144055d21c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}