{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "379238969",
    "entityType": "User",
    "nonce": "0x47e5766d1ca28326bb9e800ab1874455b5665c5432af7029fa8a19edccdf358d",
    "signature": "0xd3b7d0046778a5453885921b12396625b8fa72aeaad6d4d9518b776c03670e813e2e819634be3c47f478184d1be808784b292f0994bc89049634c7f9a933251e1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}