{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42278",
    "entityType": "User",
    "nonce": "0xace15d2d46ed9dbedc69b6f66fd7a103a8194a80f5710f81ac232c13c34b74ff",
    "signature": "0x1e9c3b78d6b241f1fc8ad8679cc4e0d31c50b9c0d96ca713e875fc7119acc598294cf3f24355dda75bcb4d0761c5fb8438b35a24e85089e9e063b9c312048a3b1b",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}