{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x45d062a17cc772692eb095e291de8a2b60c1649249a8ed94f6d8742d81d53bdf",
    "signature": "0x2039ed54651207c46e467f3b9b1f0d3a7cfc9087329112b51730f5737c586d065b14bd33143d5e845dc88a8f39e42a275d2c7e3fa21420ba4e719e8eff44122e1b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}