{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740883",
    "entityType": "User",
    "nonce": "0xca7f5421b33cbe8964a27a5ea2a5e5eca703c3f25e97aaf703e1dffd0eaf4bad",
    "signature": "0x2f25be50ebb1ad5c7a101728d75ffe3bc520836db17b6698b3adfdc4a976b83d5fd3d9682b39690973bd5181dbc6dd769ee4d635e707a480f3e0461cbf65a6471b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}