{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3260ff8b6d5eb1438916f720c20b0dcac64be4d98f13d63fd207f3c260db5697",
    "signature": "0x195e490b31a92f84b4ff9c64158b0dfb7324a3fcb6e68fcd4e56ab1a9e89239b30279ad09fe5f870e060d90dd3eacbbbf9f69c694b2c52afdbbfd3012adf1baf1b",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}