{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "777592",
    "entityType": "User",
    "nonce": "0xa8c2b011f45c32f0f71ac71e87ed369e20c24df76793793b3c53911b5f063016",
    "signature": "0xd84a3b2498142079f942959c710c8dc18d7f32a90948bd6414c878dfb6fdf2ca0efd81c7e92a1619c5045be2787e96990f2cbaed57f9412b19c2eccf212741331b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}