{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0x9125ee8c96632cafb5546536d043ab1c736327457bb16bb675b1b060a50e9cab",
    "signature": "0xae1d8ebb9737ee888e2ab88f1624a42ee7f23c52414ff0dbaa648f9a2230983d5ba919f3d0f6e822ec5c53578463063b162a194e071853cec528feabaf94343d1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}