{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64957",
    "entityType": "User",
    "nonce": "0x36356b71e5e9b837bc98059b038959004c2b9c4849eb3290215144bf0cb77b90",
    "signature": "0x3178b874ebe2788a368ac41b08b1562ec3ee8e3183d9ca88d85a2165af9de98630eec9c6a2cc57c1428c894afe1b5d5adb055404bd2b559ee549f7fa91446ab71b",
    "signer": "0x66897996b38D5FBFfa383eD077e429C63B8AD506",
    "userId": "904230991"
  }
}