{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138039",
    "entityType": "User",
    "nonce": "0xb7df0a5b317d153c97026b49d48f399f29401b8f86e38ed0c7d6df3869d0dfe0",
    "signature": "0xa00155fc85b4674a065e28f8c6185bcd535f6088957a98d980a4071793b3183715daa30662a151ea565b8b7735dacf7aee35c6efeb9f48e8e2e1c90d0bb0645e1c",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}