{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377736698",
    "entityType": "User",
    "nonce": "0x1794a53fb654d785f71319390253b7aa7912e7e1fab1b52f48c609fd30267c29",
    "signature": "0xb7310eb15781121fe6d98189836311682ca1740ec282d606e4d744ea68d6f57d467d09c6e1763d9196225f7030de84de9cf08f4811d93ff33bad94930891c6251c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}