{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0x85f90e37912889ebe45da5f00f38f6145a46b7c12fc7c8bfa466f3de4078b640",
    "signature": "0x0f441765b54865963806572456b9544ac248bb64a8197b12e5608d9f849316191749761c52407e530fc9af022a10bad65698d2f7dd638fcdb8de6c586101ecbb1c",
    "signer": "0x6019e9E7e1971dB9F634A836c226bd7c575D67fe",
    "userId": "93179"
  }
}