{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54920",
    "entityType": "User",
    "nonce": "0x2b36314f362dfeed10b5557ff569f7b17172807e374e18c57f5581cc30fb1cb7",
    "signature": "0x0d470c2426e41e28c147a1077107ef165270134e304f5fbec63e27967618bd0d0bb01bce93f66c8e419ac69d13e31a0ace941184c37709b2afe90b31a24052061c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}