{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385866220",
    "entityType": "User",
    "nonce": "0xe8ca4ee6cf22f57552275357cd2bd262d18e0545268f18bf62450793037231cd",
    "signature": "0xa68ed3b27926c74cd2bffa46ea6a67ff3920082fce9bd996b8eb0cb5821f3b664ef8af87db7dd09accccd3d9175be197ac260aeae2d4c419316a3f01157d2d051c",
    "signer": "0xF11F60bFb591E532d6E71E699ddfdfC58f377CA1",
    "userId": "458027684"
  }
}