{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "186198383",
    "entityType": "User",
    "nonce": "0xb2704aaac670c086304e1c6d06f536518c485094091b3f13b49e1ae68398e023",
    "signature": "0xdb424f08f64c0def7d4f2ae6600b78c308e337c528e37f64f596cc4a5533b1931bf3d27499890b16e1abd08272f684a3afb76eb90a984563fa65ae7a344ed9eb1c",
    "signer": "0xfC070d9d02c152146e3D1B2cD4B03FD7a3CA1AB0",
    "userId": "539537193"
  }
}