{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xa215fc9fb56f1f410277e7acf72d90631f403cf904bef79dd0e7fb97b803d436",
    "signature": "0xe880e9009c8ea0a195fbebe47a9442a84fc9f020aa0435bd2f27766cbe88c09828fcad295bee711d2d29518e9f385b2f6d00e5440c84fdf93d87425470ec18061b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}