{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49311",
    "entityType": "User",
    "nonce": "0x2e8a817af2ae7d912abef50c69558293c576d596b172db01d0a78e5548bf4b18",
    "signature": "0xc4f5efb6aa058e1674d9b0432f8693f39f58476836e23b2118a141d598e4304277cf254c5d628e74c8c2c9c16a8fadef1983678c93d9a2f0339b3f36ba1167041c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}