{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0xae7e40b53cbb5dea0304d3feea3a069832e0d63883062ac29fab2c5f43b115bd",
    "signature": "0x83d2ec9590e938b3e3aa3dbe2a6e7e9ddafd49c2c79d839087e20ce1a78cf7705b04bbedbba1e52386e47f45b97b4575f2508a4b80c864053f6ecd881be9dffe1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}