{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc1d812db00d2945a63feef0d8ad16c0d7bee40c858402d9a466b416d86f2ff5b",
    "signature": "0xaeceff5326123a18f9fe668701eb5cf34ff12c5b4f944e9ebb6b3cccb2031d5c51e7fdb72dd2e3cb8a623dbdbd8751f3defdbd27ad8d4fae46a35f46a049f3771b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}