{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x34539c8b4e922fea777ae684b9cfc829b957ce554b44d080547c38f4cdfc0995",
    "signature": "0x4e819ab04e80c15730aa0da36fb265fd4d509649a5b9fe31d255f7b514028eeb540e2dda11788152dd1625e5f1d50f3df4812c42543a712fe8a0863634e260c11b",
    "signer": "0xcBc71de214E83b3C3300D82C31f0FCF60E32F112",
    "userId": "358833562"
  }
}