{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179542438",
    "entityType": "User",
    "nonce": "0x3fdc3a9fb0d4bdd4232a55a10ed66bd328e4a2e4184c91b63844e2c244a5c2a9",
    "signature": "0xa5702cac27dad708dfd2a86377b7945b73254820a312dc50c546a41d0481cc3f32d59989ce9a963b329cee40e372c0b74c0e4967b937b77db68aeb15f0301a9c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}