{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x17aaea133e64ef1fb3b354bb7ce2523b1a97b138cc7a4a8bcf41e110db024bd2",
    "signature": "0x91610c75c7ef96088f1e35c9f9551750e437044692ef5f3269b95bc34968ad2f017debab4cdfdb35fedf90821d4978caff01797d673092642b875e30684c4d741c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}