{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x5cd687eb51cdc4af882f9e49518cec49bc50f8e7f82dece88a2559d7a317175e",
    "signature": "0x653558cb6b0b71cb499e2d4b0e6e57cc6b91fb5607af5db6ff5f238b73948e9011c19a3ebd1311e7e12efb6fb83e2b6212fffb7243e03f120c5df076075fbbc21b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}