{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "622825424",
    "entityType": "User",
    "nonce": "0x4a6c918ce01e7e6879b45fd5f64d341438bbca0ebae8a1cbd16b4e629bcb11e3",
    "signature": "0xdad406911ab61bf35cd3b3524eaabb32fb64cedb2dafb7d9972ed6c080a6f4840d796b5690fd03fe855da6ae1cfb13d9a0da4caf333dd8672b9358b2449e216a1b",
    "signer": "0x5bc693b06E704c96d4Fdb9E49886F1CbaB1E0C30",
    "userId": "210281347"
  }
}