{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x795026aa022a1b1d5b807056f693e43bbaa29d88143978519d22b0ac8a57798c",
    "signature": "0x1ee6642923c16c5713b7c983982a49f0f809db630f894a9efa4edad6dc56a0ac7d65ae36a8b5a7a6d155271b4ec223fe467b29927f6f467d02f2393cc2cc3f951c",
    "signer": "0x168ff3b3F21912D4d676468A80Ee2af0E2F24a59",
    "userId": "124431641"
  }
}