{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x90acbad9480407a37aa5ea003031310bc6ffa82f17394b0cdd89599feae0ee83",
    "signature": "0xa3d18ce3aa07f5479ca248a02d6a612f92fe96c97c56da73437f5bcc840203ff202c7b47b6c3f28136a6f9a7527e7c53b8e897b61497ded883879ec9dc1b8a6e1c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}