{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109313",
    "entityType": "User",
    "nonce": "0x45b6fbd29eb28029df5e813308393d79fb668fb6ff8d0c29e466d24004e93546",
    "signature": "0x8cda73b4e144ebe990b6adcb34baef9401fff25a270902e3269380bc9f39102909dcc9631751e9f24eb00b93278d168627fa92900b672c017b1dcc46139211461b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}