{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x75ad9622a2db60a803c2fc17a3071d85adfb80008f180fc7b77c3be5345dd15f",
    "signature": "0xb73b1b0086cee9784c8a3c55fc5ab8e9ab9312c7b06c8d3c6820d7ce60b27a915c4c8ac875ea045d32c794f8d39687ac903da7f2def541d0461dc45438a3f5371b",
    "signer": "0xdd9866f5231155D8450f557CF6216590fAeE2900",
    "userId": "697765896"
  }
}