{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776584",
    "entityType": "User",
    "nonce": "0xa774d840fd01d5bf0aac12edf76914a1bb8e8e1a62281af29161fd38e871606d",
    "signature": "0xba22172a53e78291075f9a2ac3e3da6160a798cd043ba608a0b043910bd47fd048ded96c25ec5a311302e9fcb8188557dc661c8b1c069a6b351be243b3757d4f1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}