{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x55468a3a96592ec617ba5e8772bd7072373215864d1d1607d86c65898e95eaee",
    "signature": "0x9aa8b40bc0845530dc3c24094ad18f485129a1e9a27b873c2db7993bb7f736fd21f819b7ae82dcf7b4b89c8fd26c67c29c1981e455d451042089e3d679cb65d71c",
    "signer": "0x28E041745695914518512137a56c9810034C10B9",
    "userId": "134529"
  }
}