{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xa56e499915e62ae488d571d67e19fa22ff42cf6135b0da446bdd4ef867507a04",
    "signature": "0x7e3b3b840a3accb4ccda7c7b865f4e6e1dce9f32433bc1278b18f57fc65c2e2a45ed45439475cb27f3e3ba808cc0a358887e1fa9991cb8ca19d2527a7802e2531b",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}