{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185420719",
    "entityType": "User",
    "nonce": "0xf5c1def30290ef4a66e784d224718e74c05c9f235b3047008098740dce59005c",
    "signature": "0x4c98b74a33fec1d11cb486ad2dd2f8ec4e5a11da0ac6875f021dce67f1eed11278abed19a7a45a8a0acea5f0a2658d9b26de5cd54d725646bd4ce3e248fe1bb91c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}