{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x37980b100efa10889b52f7fcff3dd0d35bff4de69f4fd89491578cf2252cae65",
    "signature": "0x3cd98fe15e4be457635cc25fb0dad817c7253f82eee2efdb8a01f8b7aa39a85c069d2891289039b5a1c8333efff43a97f65a57bfe23bc1307f834fbb5ab059381b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}