{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x83d8094b8b5c56993e05a6f68b49a74496e59215f4f1a63e85564d17dd86e475",
    "signature": "0x14a96544306636d05ef7a8163c3d92b3dcd5b2a9e75d2f50bed04376323954aa76ddf1200f10c61627cf6b1209e45329a29d211c42f51c02bec4a21fe9cb83481c",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}