{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "969012944",
    "entityType": "User",
    "nonce": "0xf6053e3f2894d6481dfdb23042be6c11e58d694f72db686161971f1cd707131f",
    "signature": "0x44279a44216ea5718ac4decb4a1ff505421981db40d7f99f4b8ab84f2d138a7946415eb256519aa52c198424929c421d17598928dfc470816d26fa001af0b30d1c",
    "signer": "0xac9398fE3324BB093c993C791Db4a36624f5a248",
    "userId": "223946715"
  }
}