{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xdb1933716107329b854dacb5ff007f6ad216fa7a8a261cc07b630af7807b0039",
    "signature": "0xe649c47259fc128b878a3915a119bb281390a014fd138c109df22bd6306daa800329ce8268203f6d227128e94b850a8f26ada69155516b93b224491552cfab711c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}