{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185652283",
    "entityType": "User",
    "nonce": "0x2469d99ddf4e2284df17fff8a67a8d46d85fd0fa75f75ded95e7a57ef9dbda5e",
    "signature": "0x863fd48096ba0c67b184da38c5ead094e139d4680013c60d6fdc3869c059f0a3566c50ed1006a21b5db45b2067897f3072218499a36e40dcd1b2920216f95c331c",
    "signer": "0xf58e88bc049B61Ba5AeBFe1638b24E3F335a00CC",
    "userId": "497455458"
  }
}