{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332490",
    "entityType": "User",
    "nonce": "0x038e66f12c9341a1f6235282a98188481ebbc9f39ce1b0a7dced4fb8be9af1d7",
    "signature": "0x211d2885d6db18132992840d8ceb0b20517f7a76f88f683103e1105c6f216e142e538fe981d54dff39372c3153cda7daa07e78edf27efc4db9a3b85aeab96efc1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}