{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf11a194e9ae479c872219b5bd0220cb2f08558aa7317bdd84befe2db68eb8e4a",
    "signature": "0x6f132a3777c7304388f5de274bd3dbead6bfbb4d32be9c89393971d250e3af23139f696fc49747d9080b0b5fb887a7e3b3018f1ced3535e2534ce775520195821b",
    "signer": "0x5f227dDA6eae9a907937788f99A04B5C7Be53eAD",
    "userId": "836355024"
  }
}