{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148360",
    "entityType": "User",
    "nonce": "0x6399744b86856fa8efe09ce14786ce9f46341a601b2ce29d5894a5c71c349633",
    "signature": "0x28aa2c95de19e354c0718545f24357de5e155318b1a2c0ee80fc2c5a02a5a6cc5d9a1b70d4bc8031324ad8b283af08a495b22bc486317f045ec5270605f8de041c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}