{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f6411861467df1e06098e69b4414dcedf8bbdf8cb7d3d57da275b61c9969ba7",
    "signature": "0x9fb128d6fd8a5822d5ed33e71dd73c6c145687d7a1fa219fad68e19b516b0db900ea86478326bfa7661b694e2a213da9fe090b31d3e5e14a5c60cddf67b7a6741c",
    "signer": "0x6A2Cd573e08F36EEFfe86ebAA84A7BBa15cC43Da",
    "userId": "98037577"
  }
}