{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1800620",
    "entityType": "User",
    "nonce": "0x1af905cee0109fd66b4c58e71498ce0c91e2a8aaba84564d48f20e1ea2cb2455",
    "signature": "0x132bd5551b207268fc4b4b3c82764d0f0dc1891b0fbc3f5fa3ac9eab57c9bdeb6139052ac922fc21b8f1f7d0cdb2ea0a5c1e97dc7cf1b879d31c13921ffc415c1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}