{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "997330870",
    "entityType": "User",
    "nonce": "0x6d42480665d9f6e507a308ff8f199afd9434978cc1a584694852933b0cda1cb5",
    "signature": "0x4f30671465cd7eee95a68078faac2bb9fcfa060ab234f13fc58bc3514e9959331840f20b4d2f81634798d6f50c5b1bacdd136ef7d8fc5e7f092b7978b882451c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}